United States v. Wassim Mazloum ( 2012 )


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  •                       RECOMMENDED FOR FULL-TEXT PUBLICATION
    Pursuant to Sixth Circuit Rule 206
    File Name: 12a0278p.06
    UNITED STATES COURT OF APPEALS
    FOR THE SIXTH CIRCUIT
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    09-4339/ 4340/ 4341/ 4342/ 4344/ 4345
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    UNITED STATES OF AMERICA,                          -
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    Nos.: 09-4339/ 4340/ 4341/
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    4342/ 4344/ 4345; 11-4079
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    Plaintiff-Appellee/Cross-Appellant,
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    v.
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    MOHAMMAD AMAWI, MARWAN EL-HINDI,
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    and WASSIM I. MAZLOUM,
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    Defendants-Appellants/Cross-Appellees.
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    11-4079                        -
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    UNITED STATES OF AMERICA,
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    Plaintiff-Appellee,
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    v.
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    N
    MOHAMMAD AMAWI,
    Defendant-Appellant.
    Appeal from the United States District Court
    for the Northern District of Ohio at Toledo.
    No. 3:06-cr-719—James G. Carr, District Judge.
    Argued: April 16, 2012
    Decided and Filed: August 23, 2012
    Before: BOGGS, MOORE, and CLAY, Circuit Judges.
    _________________
    COUNSEL
    ARGUED: Amy B. Cleary, OFFICE OF THE FEDERAL PUBLIC DEFENDER,
    Cleveland, Ohio, Stephen D. Hartman, KERGER & HARTMAN, LLC, Toledo, Ohio,
    David L. Doughten, Cleveland, Ohio, for Appellants/Cross-Appellees. John F. De Pue,
    UNITED STATES DEPARTMENT OF JUSTICE, Washington, D.C., Thomas E. Getz,
    UNITED STATES ATTORNEY’S OFFICE, Cleveland, Ohio, for Appellee/Cross-
    Appellant. Edward G. Bryan, OFFICE OF THE FEDERAL PUBLIC DEFENDER,
    1
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.         Page 2
    Cleveland, Ohio, for Appellant in 11-4079. Justin E. Herdman, UNITED STATES
    ATTORNEY’S OFFICE, Cleveland, Ohio, for Appellee in 11-4079. ON BRIEF: Amy
    B. Cleary, OFFICE OF THE FEDERAL PUBLIC DEFENDER, Cleveland, Ohio,
    Stephen D. Hartman, KERGER & HARTMAN, LLC, Toledo, Ohio, Charles M. Boss,
    BOSS & VITOU, Maumee, Ohio, Deborah K. Rump, Canton, Ohio, David L. Doughten,
    Cleveland, Ohio, Jeffrey J. Helmick, Toledo, Ohio, for Appellants/Cross-Appellees.
    John F. De Pue, Paul Ahern, UNITED STATES DEPARTMENT OF JUSTICE,
    Washington, D.C., Thomas E. Getz, Justin E. Herdman, UNITED STATES
    ATTORNEY’S OFFICE, Cleveland, Ohio, for Appellee/Cross-Appellant. Edward G.
    Bryan, OFFICE OF THE FEDERAL PUBLIC DEFENDER, Cleveland, Ohio, Melissa
    M. Salinas, OFFICE OF THE FEDERAL PUBLIC DEFENDER, Toledo, Ohio, for
    Appellant in 11-4079. Justin E. Herdman, UNITED STATES ATTORNEY’S OFFICE,
    Cleveland, Ohio, Thomas E. Getz, John F. De Pue, UNITED STATES DEPARTMENT
    OF JUSTICE, Washington, D.C., for Appellee in 11-4079.
    BOGGS, J., delivered the opinion of the court, in which CLAY, J., joined and
    MOORE, J., concurred in the judgment. MOORE, J. (pp. 42–63) delivered a separate
    concurring opinion.
    _________________
    OPINION
    _________________
    BOGGS, Circuit Judge. This appeal arises from a jury trial in which the three
    defendants were convicted of conspiracy to kill and maim persons outside the United
    States, in violation of 
    18 U.S.C. § 956
    (a)(1), and of conspiracy to provide material
    support to terrorists in furtherance of the killing of U.S. nationals, in violation of
    18 U.S.C. § 2339A. In addition, Amawi and El-Hindi were each convicted of two counts
    of distributing information regarding the manufacture of explosives, destructive devices,
    and weapons of mass destruction, in violation of 
    18 U.S.C. § 842
    (p)(2)(A). Amawi, El-
    Hindi, and Mazloum were sentenced to below-Guidelines-range terms of 240, 144, and
    100 of months of imprisonment, respectively.
    There are ten issues on appeal. First, the defendants challenge the district court’s
    decision, pursuant to the Classified Information Procedures Act and Foreign Intelligence
    Surveillance Act, to delete classified information from discovery.            Second, the
    defendants challenge the sufficiency of the evidence underlying their convictions. Third,
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079          USA v. Amawi, et al.          Page 3
    the defendants object that their expert witnesses—who would have testified about
    Islamist culture and social norms in the Middle East—should not have been excluded
    from testifying. Fourth, Amawi appeals the district court’s denial of his motion to delay
    the trial. Fifth, the defendants challenge the district court’s decision not to provide their
    requested jury instruction concerning the First Amendment. Sixth, El-Hindi appeals the
    district court’s denial of his motion for acquittal as a matter of law based on an
    entrapment defense. Seventh, Mazloum appeals the district court’s denial of his motion
    to dismiss the indictment against him based on an outrageous-conduct defense. Eighth,
    Amawi claims that his Miranda rights were violated after his arrest in Jordan while he
    was being interrogated onboard a jet flying back to the United States. Ninth, the
    government cross-appeals the sentences imposed, contending that they are both
    procedurally and substantively unreasonable. Tenth, Amawi appeals the district court’s
    denial of his motion for a new trial based on allegations of newly discovered evidence
    regarding the alleged identity of a Syrian contact.
    We affirm all opinions and judgments of the district court.
    I. Facts
    This case concerns the actions of defendants Mohammad Amawi, Marwan El-
    Hindi, and Wassim Mazloum in connection with Darren Griffin, a paid informant for the
    FBI. After the attacks of September 11, 2001, the FBI assigned Griffin to embed himself
    in the Muslim community in Toledo, Ohio. Griffin enrolled in classes at a local mosque
    and obtained employment with a Muslim charity. Griffin described himself as an
    “ex-Green Beret, disenchanted with the United States[, who] did not agree with
    [American] foreign policy.”
    Griffin’s contact with El-Hindi began in September 2002. El-Hindi approached
    Griffin after meeting him at a mosque and asked about the feasibility of kidnaping an
    Israeli soldier or politician. Over the next two years, Griffin developed a relationship
    with El-Hindi. Griffin expressed an interest in training others for “jihad” and said he
    would create a security company as a front. In June 2004, El-Hindi informed Griffin that
    he had wanted Griffin to train him and “two recruits” (Khaleel Ahmed and his cousin,
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.        Page 4
    Zubair Ahmed) as “Islamic extremists for jihad.” Griffin spoke with the Ahmeds by
    phone, but the training never materialized.
    Griffin first encountered Amawi at the same mosque where he met El-Hindi. On
    June 30, 2004, Griffin went to Amawi’s home. Griffin stated that he wanted to fight for
    jihad against American forces in Iraq. Amawi also expressed a desire to fight with the
    jihadists and martyr himself, though he said the “conditions for jihad” were not right in
    Iraq. On October 14, 2004, the pair again met at Amawi’s home. Griffin showed
    Amawi various videos concerning fundamentalist Islamist terrorism, Usama Bin Laden,
    and the attacks on the Pentagon and the World Trade Center.
    On October 21, 2004, Amawi suggested to Griffin the possibility of recruiting
    Mazloum for jihad training. Amawi arranged a meeting with Mazloum and Griffin on
    October 24, 2004. At this meeting, Mazloum agreed to participate in Griffin’s planned
    jihad training—including bomb-making, weapons training, and certain paramilitary
    tactics. On November 17, 2004, Amawi brought Mazloum to Griffin’s apartment.
    On November 23, 2004, and December 13, 2004, Griffin visited Amawi’s
    apartment, where the two watched jihadist videos. Amawi expressed admiration for a
    sniper in a video who claimed to have killed two Americans. On January 10, 2005,
    Griffin and Amawi watched more jihadist videos at Amawi’s home, including a video
    demonstrating how to construct a bomb vest. On January 20, 2005, Griffin offered to
    provide Amawi with firearm instructions after Amawi indicated that he declined an
    opportunity to travel to Iraq due to his lack of training. The next day the pair met at a
    shooting range, where Griffin trained Amawi in the use of handguns. Amawi and Griffin
    met several times between January 27 and January 30, 2005. Griffin suggested that they
    provide laptops to “brothers” in Iraq, and Amawi agreed to transfer jihadist materials
    that Amawi had obtained onto CDs to provide instruction to the jihadists.
    On February 2, 2005, Griffin brought El-Hindi to Amawi’s apartment. This was
    the first time Amawi and El-Hindi met. The trio watched jihadist videos. El-Hindi,
    watching a video about explosives, stated that “we will work with some of that stuff”
    and asked Amawi for a copy of the videos. On February 6, 2005, Griffin met Amawi at
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.        Page 5
    Amawi’s apartment and asked him to transfer jihadist videos to Griffin, including the
    video about building a bomb vest. On February 8, 2005, Griffin met El-Hindi at his
    home. El-Hindi showed Griffin where he could download jihadist videos from the
    internet.
    On February 14, 2005, El-Hindi and Griffin met Amawi at his office at AZ
    Travel. After Griffin suggested that they recruit other “brothers” for training, Amawi
    suggested that they recruit Wassim Mazloum and Mazloum’s brother. On February
    16, 2005, Griffin met Mazloum at Amawi’s apartment, and the trio traveled to El-
    Hindi’s home. This was the first and only time that all four were present together. After
    they all arrived, Griffin explained that he would train them but that they would have to
    pretend to be working for his security firm. Mazloum stated that he was ready for jihad
    training and expressed an interest in going to Iraq. Amawi suggested he knew another
    person who could be recruited and expressed an interest in going to Jordan or Iraq. El-
    Hindi offered to seek grants to fund the operation. The quartet agreed to begin training
    regardless of whether others could be recruited. El-Hindi sought sniper training.
    Mazloum said that he wanted to learn how to make bombs. Amawi thought it was
    important to learn how to make explosives and sought sniper training. Griffin offered
    to start with handgun training and stated that it was not practical to begin with
    explosives. The group then watched a series of jihadist videos. The four never met
    together after this meeting.
    On February 18, 2005, El-Hindi gave Griffin an email from “Just Jeans,” a
    company El-Hindi thought was a cover for a jihadist website. One week later, on
    February 26, 2005, El-Hindi and Griffin met again at El-Hindi’s home. El-Hindi showed
    Griffin photos of the placement of a battery-detonated improvised explosive device
    (“IED”) used to destroy U.S. military vehicles.
    On March 14, 2005, Griffin and Amawi met at AZ Travel, and Amawi said that
    he was anxious to travel to Jordan—his lack of training was the only reason holding him
    back and preventing him from joining the jihad immediately.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.      Page 6
    Griffin met with El-Hindi on March 20, 2005. El-Hindi stated that he was
    preparing a grant to obtain funding for their training. The pair met with Jihadi Dahabi,
    an accountant, on April 4, 2005, to prepare fraudulent “educational” grants that would
    be used to finance jihad training.
    On April 7, 2005, Amawi told Griffin that someone in “Syria” wanted to know
    if they could supply a “chemical thing” for the “brothers.” Griffin figured out that the
    chemical in question was Astrolite, an explosive. Griffin offered to send laptop
    computers he had to Syria to help the brothers fighting in Iraq. On April 11, 2005,
    Griffin told Amawi that he had an Astrolite supplier in Kuwait. On April 13, 2005,
    Amawi and Mazloum met at Griffin’s home. Griffin showed them how to properly align
    the sight on a pistol. Griffin explained the course of training he would provide. Amawi
    expressed an interest in learning how to manufacture IEDs. Amawi and Griffin decided
    that Amawi’s contact in Syria should deal directly with Griffin’s contact in Kuwait
    regarding the Astrolite. The next day, after Griffin expressed concern over discussing
    the Astrolite in front of Mazloum, Amawi said that Mazloum could be trusted.
    On April 20, 2005, Griffin took Amawi and Mazloum to a shooting range.
    During the trip, Amawi again asked about IED training. Mazloum and his brother again
    joined Griffin and Amawi at the shooting range on April 29, 2005. Mazloum and
    Amawi again asked about explosive training. On May 1, 2005, Amawi told Griffin that
    he believed he was being followed. The next day Amawi, Griffin, and Mazloum
    purchased paintball equipment for tactical training.
    On May 18, 2005, Amawi told Griffin that he intended to go to Jordan. On
    July 27, 2005, Griffin told Amawi that he had to travel to the Middle East for business
    and offered to buy Amawi a ticket. Amawi accepted the offer. The pair met again on
    August 15, 2005, to finalize plans for the trip. They sought to provide laptops loaded
    with videos for jihadists going to Iraq.
    On August 22, 2005, Griffin and Amawi traveled to Jordan, carrying six
    computers and a satellite phone that the FBI gave to Griffin. While in Jordan, the pair
    stayed with Amawi’s family. Amawi introduced Griffin to several of his “trusted
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.        Page 7
    brothers.” Griffin departed alone for the United States on September 8, 2005, leaving
    the satellite phone and one of the laptops. After his return, Mazloum asked Griffin
    whether he and Amawi had made “connections” with the “brothers, the mujahideen in
    Iraq.”
    On December 13, 2005, Griffin returned to Jordan, bringing, at Amawi’s request,
    Amawi’s desktop computer and three CDs containing jihad training videos. Griffin
    stayed with Amawi’s family. Griffin departed alone on December 26, 2005. Upon
    Griffin’s return, Mazloum again asked him, on January 30, 2006, whether he had made
    any connections with the “brothers over in Iraq” on his trip.
    On February 17, 2006, the FBI contacted Griffin and told him to leave his
    apartment at once. His service as an informant was terminated, and his identity would
    soon become publicly known. On February 19, 2006, FBI agents flew to Jordan and
    arrested Amawi. The agents placed him on a jet. During the flight, Amawi was
    interrogated and made inculpatory statements.
    II. Classified Proceedings
    The United States’s case-in-chief presented to the jury did not contain any
    classified information. Thus, this court’s review—with respect to the sufficiency of
    evidence supporting the conviction, the admissibility of expert testimony, the denial of
    a motion for a continuance, claims of entrapment and outrageous conduct, the violation
    of Amawi’s Miranda rights, the sentences, and Amawi’s motion for a new trial—is
    based entirely on the unclassified record. However, the defendants raise several
    arguments with respect to information that the district court examined and withheld from
    discovery under the Classified Information Procedures Act and the Foreign Intelligence
    Surveillance Act. Further, Amawi, Mazloum, and El-Hindi contend that the district
    court judge erred by conducting ex parte proceedings with the United States—both
    before and during the trial. Finally, defense counsel fault the United States for failing
    to process their security clearance applications. Following our review of the entire
    classified record, we find that the defendants’ claims are without merit.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.           Page 8
    A. The Classified Information Procedures Act
    The Classified Information Procedures Act (CIPA), 18 U.S.C. App. 3, provides
    a set of procedures for federal courts to follow when the government seeks to protect
    classified information from disclosure. The sections of CIPA are arranged in sequence
    based on the flow of litigation. Initially, section 2 provides that after the filing of the
    indictment, the government may move for a pretrial conference to “consider matters
    relating to classified information that may arise in connection with the prosecution.”
    18 U.S.C. App. 3 § 2. Next, under section 3, “[u]pon motion of the United States, the
    court shall issue an order to protect against the disclosure of any classified information
    disclosed by the United States.” 18 U.S.C. App. 3 § 3. Section 4 governs what
    classified information can be protected by the United States from discovery:
    The court, upon a sufficient showing, may authorize the United States to
    delete specified items of classified information from documents to be
    made available to the defendant through discovery under the Federal
    Rules of Criminal Procedure, to substitute a summary of the information
    for such classified documents, or to substitute a statement admitting
    relevant facts that the classified information would tend to prove. The
    court may permit the United States to make a request for such
    authorization in the form of a written statement to be inspected by the
    court alone. If the court enters an order granting relief following such an
    ex parte showing, the entire text of the statement of the United States
    shall be sealed and preserved in the records of the court to be made
    available to the appellate court in the event of an appeal.
    18 U.S.C. App. 3 § 4. Section 5—which is not at issue in this case—provides the
    process if the “defendant reasonably expects to disclose or to cause the disclosure of
    classified information.” Section 6 of CIPA provides procedures for cases that involve
    classified information:
    Within the time specified by the court for the filing of a motion under this
    section, the United States may request the court to conduct a hearing to
    make all determinations concerning the use, relevance, or admissibility
    of classified information that would otherwise be made during the trial
    or pretrial proceeding. Upon such a request, the court shall conduct such
    a hearing. Any hearing held pursuant to this subsection (or any portion
    of such hearing specified in the request of the Attorney General) shall be
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.           Page 9
    held in camera if the Attorney General certifies to the court in such
    petition that a public proceeding may result in the disclosure of classified
    information. As to each item of classified information, the court shall set
    forth in writing the basis for its determination. Where the United States’
    motion under this subsection is filed prior to the trial or pretrial
    proceeding, the court shall rule prior to the commencement of the
    relevant proceeding.
    18 U.S.C. App. 3 § 6.
    On March 23, 2006, the United States moved for a protective order under section
    3 of CIPA, and the district court entered an order on July 17, 2006. On September 14,
    2007, the United States filed a notice of intent to use information derived under the
    Foreign Intelligence Surveillance Act (FISA), 
    50 U.S.C. § 1806
    . Relying on the
    authority of section 6, the district court conducted a series of ex parte hearings with the
    United States for purposes of reviewing the classified documents and considering the
    government’s claims under CIPA and FISA. The district court also conducted ex parte
    hearings with defense counsel to learn about their defense theories and how any
    classified information might be helpful or necessary to the defense. On May 15, 2009,
    in denying a motion for a new trial, the district court held that it had conducted the ex
    parte hearings in conformance with CIPA and FISA.
    B. Deleting Evidence From Discovery Under CIPA
    1. Precedents
    The leading case construing whether courts can permit the government to
    withhold evidence from discovery under CIPA § 4 is United States v. Yunis, 
    867 F.2d 617
     (D.C. Cir. 1989). There, the District of Columbia Circuit held that evidence that “is
    relevant and helpful to the defense” cannot be withheld. 
    Id. at 622
     (quoting Roviaro v.
    United States, 
    353 U.S. 53
     (1957) (internal quotation marks omitted)). The court looked
    to three factors to determine whether classified information should be disclosed. First,
    the court must assess whether the information “crosse[s] the low hurdle of relevance.”
    Id. at 623. Second, the court must determine whether “the assertion of privilege by the
    government is at least a colorable one.” Ibid. Third, because “classified information is
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079           USA v. Amawi, et al.         Page 10
    not discoverable on a mere showing of theoretical relevance . . . [,] the threshold for
    discovery in this context further requires that [the information] . . . is at least ‘helpful to
    the defense of [the] accused.’” Ibid. (quoting Roviaro, 
    353 U.S. at
    60–61) (emphases
    added).
    The “relevant and helpful” standard was adopted by several other circuits in
    ensuing cases. See, e.g., United States v. Aref, 
    533 F.3d 72
    , 79–80 (2d Cir. 2008);
    United States v. Moussaoui, 
    382 F.3d 453
    , 472 (4th Cir. 2004); United States v.
    Klimavicius-Viloria, 
    144 F.3d 1249
    , 1261 (9th Cir. 1998); United States v. Varca,
    
    896 F.2d 900
    , 905 (5th Cir. 1990); United States v. Smith, 
    780 F.2d 1102
    , 1107 (4th Cir.
    1985).
    Quite recently, in United States v. Hanna, 
    661 F.3d 271
    , 295 (6th Cir. 2011), we
    joined those circuits. In accordance with that holding and the other courts that have
    considered this issue, we now apply the Yunis “relevant and helpful” standard.
    2. Standard of Review
    The defendants and the United States disagree about the appropriate standard of
    review. They both agree that this court’s review of whether the district court can
    conduct ex parte hearings is a question of law reviewed de novo. See United States v.
    Dumeisi, 
    424 F.3d 566
    , 578 (7th Cir. 2005). However, they disagree with respect to the
    appropriate standard of review of the district court’s decision to delete certain classified
    items from discovery.
    The United States contends that this court should review only for abuse of
    discretion. Defendants counter that the district court’s CIPA rulings should be reviewed
    de novo because the district court articulated two different rationales to exclude the
    classified evidence—the Brady v. Maryland standard, and the general Yunis standard.
    The defendants assert that the district court erred by incorrectly applying the general
    standard for disclosure under Brady rather than the stricter standard for withholding
    classified information set out in Yunis.         Under Brady, “the suppression by the
    prosecution of evidence favorable to an accused upon request violates due process where
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079             USA v. Amawi, et al.        Page 11
    the evidence is material either to guilt or to punishment, irrespective of the good faith
    or bad faith of the prosecution.” Brady v. Maryland, 
    373 U.S. 83
    , 87 (1963) (emphasis
    added).
    These are two separate inquiries. First, to the extent that the district court applied
    an incorrect legal standard (Brady—which is less favorable to the defendant—rather than
    Yunis), then de novo would be the appropriate standard of review to ascertain an error
    in law. Second, beyond the application of the appropriate legal standard, this court
    reviews for an abuse of discretion the district court’s decision to delete evidence from
    discovery based on the Yunis “relevant and helpful” standard.
    3. Section 4 Analysis
    The district court, at several junctures, interchangeably applied the Brady and the
    Yunis standard. Cf. United States v. Meija, 
    448 F.3d 436
    , 456 (D.C. Cir. 2006) (“We
    have conducted our review de novo because the district court did not determine whether
    the classified material would be helpful to the defendants under the Yunis I standard, but
    rather stated only that it was not subject to disclosure under Brady v. Maryland.”). For
    example, during a pretrial conference on December 17, 2007, counsel for El-Hindi asked
    the court: “The FISA and CIPA information, Judge, we were talking about if there were
    any parts of that that were exculpatory, that was going to be reviewed by the Court. And
    has the Court reviewed that material?” The court answered, “I can only say what I've
    said. The government understands its obligation to ascertain and produce exculpatory
    material.” This answer alludes to Brady and not Yunis, though the question by counsel
    was couched in terms of exculpation only. In an order denying defendants’ requests to
    review CIPA and FISA materials, the district court stated that after its review, the
    classified record revealed that “[t]here was nothing exculpatory; nothing, indeed, that
    would have been at all helpful to the defendant or his attorneys.”                The former
    “exculpatory” standard related to Brady, and the latter “helpful” standard related to
    Yunis. This order had no citations to Yunis, but the alternative phrasing was squarely in
    line with Yunis.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 12
    The “favorable” materiality standard of Brady is much more difficult to satisfy
    than the “relevant and helpful” standard of Yunis. All Brady evidence that is “favorable”
    would be “relevant and helpful” under Yunis, but not all evidence that is “relevant and
    helpful” would be favorable. “To be helpful or material to the defense, evidence need
    not rise to the level that would trigger the Government’s obligation under Brady v.
    Maryland.” United States v. Aref, 
    533 F.3d 72
    , 80 (2nd Cir. 2008) (emphasis added);
    see Mejia, 
    448 F.3d at
    456–57 (“While Brady information is plainly subsumed within
    the larger category of information that is ‘at least helpful’ to the defendant, information
    can be helpful without being ‘favorable’ in the Brady sense.”). Simply stated, evidence
    that needs to be disclosed under Brady would also need to be disclosed under Yunis, but
    not the other way around. Even assuming that the district court improperly applied the
    Brady, rather than the Yunis, standard, under de novo review, we find that this error is
    harmless.
    When reviewing a district court’s decision to withhold information under CIPA,
    this court is placed in a somewhat unfamiliar posture. Rather than neutrally deciding
    disputes with an open record based on the adversarial process, we must place ourselves
    in the shoes of defense counsel, the very ones that cannot see the classified record, and
    act with a view to their interests. Meija, 
    448 F.3d at 458
     (“[T]he defendants and their
    counsel, who are in the best position to know whether information would be helpful to
    their defense, are disadvantaged by not being permitted to see the information—and thus
    to assist the court in its assessment of the information’s helpfulness.”). Acting as if we
    were in essence standby counsel for the defendants, we must determine what may be
    “relevant and helpful” to them. This is not a position that we relish, yet it is required by
    CIPA, as interpreted by Yunis and its progeny. And, after a review of the entire record
    with respect to the claims concerning classified information by the defendants, we find
    that there was nothing “relevant and helpful to the defense.” Yunis, 
    867 F.2d at 623
    . We
    can take the first two Yunis factors as satisfied—the information is relevant, and the
    government’s claim of privilege is colorable. However, the third factor is not satisfied.
    Similar to the record in Meija, we “conclude that [the classified evidence] ‘falls far
    short’ of the ‘helpful or beneficial character’ necessary to meet the threshold showing
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.       Page 13
    for overcoming the privilege.” Meija, 
    448 F.3d at 456
    . Defendants’ claim with respect
    to section 4 of CIPA is without merit.
    C. Ex Parte Hearings Before and During Trial
    Defendants object to the government’s having met ex parte with the trial judge
    over two dozen times before and during the trial. Defendants are correct that section 4
    of CIPA does not explicitly provide for ex parte hearings. Section 4 states: “The court
    may permit the United States to make a request for such authorization in the form of a
    written statement to be inspected by the court alone.” 18 U.S.C. App. 3 § 4 (emphasis
    added).
    However, every court that has considered this issue has held that CIPA permits
    ex parte hearings. While section 4 does not expressly provide for ex parte hearings, “[i]n
    a case involving classified documents, . . . ex parte, in camera hearings in which
    government counsel participates to the exclusion of defense counsel are part of the
    process that the district court may use in order to decide the relevancy of the
    information.” Klimavicius-Viloria, 
    144 F.3d at 1261
    ; see United States v. Campa,
    
    529 F.3d 980
    , 995 (11th Cir. 2008) (observing that “[t]he right that section four confers
    on the government [to seek deletion or substitution] would be illusory if defense counsel
    were allowed to participate in section four proceedings because defense counsel would
    be able to see the information that the government asks the district court to keep from
    defense counsel’s view”). We agree. Further, though section 4 does not directly
    mention ex parte hearings, section 6 does: “Within the time specified by the court for the
    filing of a motion under this section, the United States may request the court to conduct
    a hearing” that would be held in camera.
    The purpose of CIPA is to provide a means for the courts to oversee the
    government’s authority to delete evidence from discovery. To permit defense counsel
    to participate in such a hearing would frustrate the aim of CIPA. To the extent that the
    defendants are asserting that the government is limited to written submissions and
    affidavits to be considered in camera, rather than an ex parte hearing, such an argument
    would raise form over function, to the detriment of the defense. The district court’s role
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                    USA v. Amawi, et al.             Page 14
    in determining whether any classified information is “relevant and helpful” could only
    be aided—for the benefit of the defense—through the court asking probing questions of
    the government, rather than relying only on written submissions. Limiting the district
    court to written submissions would unnecessarily hamper this vital function of the
    district court in CIPA proceedings.1 We should stress that the district court also held ex
    parte hearings with defense counsel in order to learn about their theories and prepare for
    ex parte hearings with the government.
    Defendants object, more specifically, to the fact that a number of ex parte
    hearings were conducted during the trial. Section 6 of CIPA provides that “Where the
    United States’ motion under this subsection is filed prior to the trial or pretrial
    proceeding, the court shall rule prior to the commencement of the relevant proceeding.”
    However, based on our review of the classified record and the sealed transcripts of these
    ex parte hearings, we agree with the government that the purpose of these ex parte
    hearings during trial was “simply to remind the district court of the terms of its prior
    rulings under CIPA concerning the disclosure of classified information, and to alert it
    to the fact that certain areas of cross-examination could implicate such rulings.” United
    States Br. at 84 n.14. We also note that the district court did not issue any rulings or
    orders in court based on these ex parte hearings. Defendants’ claims with respect to ex
    parte hearings are without merit.
    D. Security Clearances
    Defense counsel assert that, though they submitted security clearance
    applications well before trial, the government never processed their applications. By
    failing to process the applications, defendants assert, the government was able to ensure
    an ex parte audience with the district court, thereby denying the defense an opportunity
    1
    This conclusion is further supported by Federal Rule of Criminal Procedure 16(d), which grants
    the district court “broad authority . . . to regulate discovery[,] includ[ing] the power to hold hearings.”
    United States v. Campa, 
    529 F.3d 980
    , 995 (11th Cir. 2008) (citing Fed. R. Crim. P. 16(d)). CIPA does
    not purport to limit this authority. 
    Ibid.
     Because CIPA also expressly excludes defendants from
    proceedings addressing the discoverability of confidential information, logic dictates that a district court
    not only has the authority to hold a hearing for this purpose, but also the ability to do so ex parte. Ibid.;
    see also Aref, 
    533 F.3d at 81
    ; Klimavicius-Viloria, 
    144 F.3d at 1261
    .
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                    USA v. Amawi, et al.              Page 15
    to participate in the CIPA process. Defendants are mistaken. Even if counsel had been
    cleared, under the provisions of CIPA, they still would not have been able to participate
    in the classified discovery process and ex parte hearings.
    The possession of a security clearance only becomes relevant after the district
    court determines, in accordance with section 4, that any classified information is
    discoverable. “If . . . the Court decides that the information is not discoverable at all,
    Defendant is not entitled to production of the information, regardless whether his counsel
    is willing to submit to security clearance procedures.” United States v. Abu Jihaad,
    No. 3:07-CR-57, 
    2007 WL 2972623
    , at *2 (D. Conn. Oct. 11, 2007).
    Because there was no classified information deemed discoverable, a clearance
    would not have entitled the defense to see any of the information. In hindsight, it is
    rather easy for us to review the record and find that because the district court correctly
    decided that no classified information should be discoverable under section 4, the
    decision of the government to decline to process defense counsel’s security-clearance
    applications created no error. However, if the district court had determined that some
    classified information was discoverable at some late junction in the proceedings, then
    security clearances would have become urgently necessary, and the government would
    have needed, on an expedited basis, to process the clearances. In such a case, a
    government decision not to process clearances at all could result in delays in the trial or
    affect the ability of defense counsel to represent their clients. The decision to never even
    bother processing the clearances could rest on an inappropriate sense of predetermination
    of what the district court would do.                  Simply processing the applications early
    on—whether they are ever used or not—and holding the final grant of clearance in
    abeyance pending the court’s determinations, would not make the government
    susceptible to “graymail.”2 As the government states numerous times, a clearance by
    2
    Tenent v. Doe, 
    544 U.S. 1
    , 11 (2005) (“Forcing the Government to litigate these claims would
    also make it vulnerable to ‘graymail,’ i.e., individual lawsuits brought to induce the CIA to settle a case
    (or prevent its filing) out of fear that any effort to litigate the action would reveal classified information
    that may undermine ongoing covert operations. And requiring the Government to invoke the privilege on
    a case-by-case basis risks the perception that it is either confirming or denying relationships with
    individual plaintiffs.”). “Our role [on] appeal is circumscribed. We are not asked, and we have no
    authority, to consider judgments made by the Attorney General concerning the extent to which the
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                    USA v. Amawi, et al.              Page 16
    itself does not entitle defense counsel to view any documents. If the district court
    determines that no evidence is discoverable under section four, the clearances would not
    be used. If the district court determines that evidence is discoverable under section four,
    then the final clearance could be issued, and cleared counsel could timely review the
    documents to prepare a defense.
    However, in this case, we agree with the district court that “[w]ith or without
    [any later-obtained] clearances, [defense counsel] could not have participated in the ex
    parte proceedings regarding classified information. Nothing in CIPA opens the door to
    such proceedings simply because a defendant’s attorney has been cleared to see
    classified information.” Because no classified information was deemed discoverable
    under section four, a security clearance would not have entitled defense counsel to any
    information. This claim is without merit.
    E. Foreign Intelligence Surveillance Act
    Though the government stated that it would not introduce any FISA-derived
    evidence at trial, the defense filed a motion to compel disclosure of such information.
    The government stated that the United States Attorney General had signed a declaration
    stating that “disclosure [of FISA material] or an adversary hearing would harm the
    national security of the United States.”
    Following an in camera review of the FISA materials, the district court denied
    the defense motion for disclosure:
    The defendants made their instant request for disclosure in conjunction
    with their demand for suppression. That request, if read narrowly and
    literally, is likewise moot, as there is not now and may never be a review
    of the lawfulness of any FISA-derived evidence. Nonetheless, viewing
    their demand as one for discovery on whatever basis might be available
    to them, I have reviewed the Acting Attorney General’s affidavit with an
    eye to any other possible basis for disclosure, including the Brady
    doctrine. Brady v. Maryland, 
    373 U.S. 83
     (1963).
    information in issue here implicates national security. Similarly, neither the prosecutorial decisions in this
    case nor the possibility of graymail . . . comes within our purview.” United States v. Abu Ali, 
    528 F.3d 210
    , 253 (4th Cir. 2008) (citing United States v. Fernandez, 
    913 F.2d 148
    , 154 (4th Cir. 1990)).
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079           USA v. Amawi, et al.       Page 17
    On review of the classified materials submitted under seal for in camera
    review, I have no doubt that the Attorney General’s declaration is
    well-taken. The FISA-related materials contain considerable operational
    and technical information [much of it required by the statute] about how
    FISA orders are implemented. Were that information to become known,
    the ability to use those operational methods and technical means could
    be impaired, with potential adverse consequences on the government’s
    ability to obtain useful foreign intelligence information, and, in turn, on
    national security. In addition, I see nothing in those materials that comes
    within the government’s Brady obligations, or otherwise could properly
    provide a basis for granting the defendants’ motion for disclosure.
    The defendants assert on appeal that the district court’s denial of their motion to
    compel disclosure of FISA material did not comport with the due-process requirements
    of 
    50 U.S.C. § 1806
    (g), which states: “If the court determines that the surveillance was
    lawfully authorized and conducted, it shall deny the motion of the aggrieved person
    except to the extent that due process requires discovery or disclosure.” (emphasis
    added).
    The district court appears to have considered disclosure of FISA-derived
    information—as it did with respect to CIPA information—at least in part through the
    lens of Brady materiality. In denying the motion, the judge stated, “I have reviewed the
    Acting Attorney General’s affidavit with an eye to any other possible basis for
    disclosure, including the Brady doctrine. . . . In addition, I see nothing in those materials
    that comes within the government’s Brady obligations, or otherwise could properly
    provide a basis for granting the defendants’ motion for disclosure.” (emphasis added).
    The court references Brady, as well as other unnamed possible bases for disclosure.
    Defendants claim that no appellate court “has addressed the breadth of FISA’s
    due process disclosure standard” and urge this court to adopt the “relevant and helpful”
    Yunis standard from the CIPA context, rather than the more stringent Brady standard.
    The United States counters that the “the Brady standard is coterminous with the
    requirement of due process embraced” by FISA. See United States v. Spanjol, 
    720 F. Supp. 55
    , 59 (E.D. Pa. 1989) (“Thus, to the extent that Fed. R. Crim. P. 16 allows
    discovery . . . beyond exculpatory information constitutionally mandated by
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079       USA v. Amawi, et al.       Page 18
    Brady . . . and its progeny, it is inapplicable to discovery of intelligence information
    collected under [FISA].”).
    Without deciding which standard is appropriate, we conclude that the defendants
    were not entitled to receive any of the FISA-derived information. First, we agree with
    the district court that none of the information derived from FISA would need to be
    disclosed under Brady. Second, after a review of the entire record with respect to the
    claims concerning FISA-derived evidence, we find that there was nothing “relevant and
    helpful to the defense.” Yunis, 
    867 F.2d at 623
    .
    III. Sufficiency of Evidence
    Defendants challenge the sufficiency of the evidence underlying their
    convictions. Their claims are without merit.
    A. Standard of Review
    Reviewing a sufficiency of the evidence challenge, “this Court must determine
    ‘whether, after viewing the evidence in the light most favorable to the prosecution, any
    rational trier of fact could have found the essential elements of the crime beyond a
    reasonable doubt.”’ United States v. Humphrey, 
    279 F.3d 372
    , 378 (6th Cir. 2002)
    (quoting Jackson v. Virginia, 
    443 U.S. 307
    , 319 (1979)). We will reverse a conviction
    due to insufficient evidence only when the “judgment is not supported by substantial and
    competent evidence upon the record as a whole.” United States v. Barnett, 
    398 F.3d 516
    ,
    522 (6th Cir. 2005) (emphasis added) (citation omitted).
    B. The Conspiracy Charges
    Count 1 of the superseding indictment alleged that from June 2004 to February
    19, 2006, Amawi, El-Hindi, and Mazloum did “willfully combine, conspire, confederate
    and agree to kill or maim persons in locations outside of the United States, to include
    U.S. armed forces personnel serving in Iraq.” Count 2 alleged that from June 2004 to
    February 19, 2007, Amawi, El-Hindi, and Mazloum “did conspire, confederate and agree
    with others known and unknown to the Grand Jury to provide material support and
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 19
    resources, knowing and intending they were to be used in preparation for and in carrying
    out a violation of Title 18, United States Code, Section 2332 (killing of U.S. nationals).”
    The distinguishing feature of a conspiracy is the agreement to violate the law.
    Iannelli v. United States, 
    420 U.S. 770
    , 777 (1975). The government need not prove that
    each defendant knew every detail of a charged conspiracy, but the government must
    prove that each defendant adopted the conspiracy’s main objective. United States v.
    Crossley, 
    224 F.3d 847
    , 856 (6th Cir. 2000).
    1. Amawi
    Amawi contends that the evidence only establishes that he sought training for
    self-defense purposes, for reasons totally unrelated to terrorist activities, and that the
    government failed to show that he intended to participate in a plan to kill U.S. military
    personnel or provide material support to terrorists. This account is not supported by
    Amawi’s own words. The record contains ample evidence to support his conviction.
    Amawi told Griffin, quite explicitly, that he “he wanted to go to perform Jihad
    against the U.S. troops overseas.” To that end, Amawi gave Griffin a number of jihadist
    videos that could be used for training other terrorists. Amawi also recruited Mazloum
    to participate in training with Griffin. Amawi’s argument that he was simply seeking
    training to promote his ability to defend himself is implausible in light of the skills he
    sought to acquire, including the construction of IEDs, suicide bomb vests, and other
    explosives.
    2. El-Hindi
    El-Hindi argues that the evidence is not sufficient to connect him to the
    conspiracy charges. This is not the case. El-Hindi also offered to recruit “brothers” in
    Michigan for jihadi training. El-Hindi, along with Amawi and Griffin, watched jihadi
    videos depicting the use of explosives. While watching these training videos, El-Hindi
    commented about the techniques and discussed ways of using them to harm American
    interests. El-Hindi hatched a plan to seek funding for training through a fraudulent
    federal grant. Perhaps most importantly, El-Hindi hosted at his home the only meeting
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 20
    where Griffin, Amawi, Mazloum, and El-Hindi congregated and discussed methods of
    carrying out their unlawful aims. At this meeting, El-Hindi mentioned that he could
    obtain a grant for $95,000 for the purposes of the agreement. There is more than enough
    evidence available for a jury to conclude that El-Hindi sought to fund the operations.
    3. Mazloum
    Mazloum contends that any training he sought was to improve his physical
    fitness and develop his military training if he were ever to return to his home in Lebanon.
    He also asserts that the actions were protected speech under the First Amendment, as he
    was simply expressing his opposition to American foreign policies. The evidence tells
    a different story.    After agreeing to undergo training by Griffin with Amawi,
    Mazloum stated that the “fight is in the . . . land of the Army.” App. 95, Gov’t Ex. 4C,
    at 10-69185-2a. Mazloum asked Griffin if he had the “weapons ready” and offered to
    contribute money to the operation. App. 95, Gov’t Ex. 4C, at 10-69185-6a. Later,
    Mazloum clearly stated his interest in IED training. The record has more than enough
    evidence to show Mazloum’s understanding of the purpose of the training.
    4. The Common Plan
    The defendants argue that collectively they did not share any sort of common
    plan: “The evidence was insufficient to prove Amawi and [the other defendants] formed
    an actual agreement to pursue the same criminal objective . . . .” Amawi Br. at 23.
    Specifically, defendants argue that they expressed different objectives and never agreed
    on a single target. However, this is not the correct standard of proof. The government
    does not need to prove that a formal agreement to commit the same offense existed. Acts
    that “may reasonably be interpreted as participation in a common plan” can be used to
    establish an implicit agreement. United States v. Walls, 
    293 F.3d 959
    , 967 (6th Cir.
    2002); see, e.g., United States v. Gunter, 
    551 F.3d 472
    , 482 (6th Cir. 2009) (noting that
    “a tacit or mutual understanding is sufficient, so long as the agreement is proven beyond
    a reasonable doubt”); United States v. Milligan, 
    17 F.3d 177
    , 182–83 (6th Cir. 1994)
    (noting that “[a] conspiracy may be inferred from relevant and competent circumstantial
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                   USA v. Amawi, et al.             Page 21
    evidence, such as the acts of the conspirators themselves”); United States v. Hughes, 
    891 F.2d 597
    , 601 (6th Cir. 1990) (stating that “the existence of a conspiracy may be inferred
    from acts done with a common purpose”).                     “To prove a single conspiracy, the
    government need only show that each alleged conspirator had knowledge of and agreed
    to participate in what he knew to be a collective venture directed toward a common
    goal.” United States v. Smith, 
    320 F.3d 647
    , 653 (6th Cir. 2003).
    On February 2, 2005, Amawi and El-Hindi, along with Griffin, met for the first
    time at Amawi’s home. At that point, Amawi had already recruited Mazloum to their
    enterprise. Amawi showed El-Hindi and Griffin jihadist videos depicting “martyrdom”
    operations. El-Hindi requested copies of the videos. On February 16, 2005, Griffin,
    Amawi, Mazloum, and El-Hindi all met together to discuss various plans. At the
    meeting, Griffin stated that their preparation was a means to “join the brothers overseas.”
    This is a direct reference to joining jihadists fighting United States military forces. The
    training was not limited to a specific country, but rather was tailored to the specific
    needs of such a conflict. This meeting, where none of the attendees expressed any
    dissension, demonstrates a “collective venture” and more than supports the evidence
    needed to defeat a sufficiency challenge to the conspiracy charge. Ibid.3
    The evidence shows that Amawi, El-Hindi, and Mazloum shared an intent to
    engage in activities that were aimed at killing or maiming United States military
    personnel and that they participated in a common plan to provide material support to
    these activities. The government does not need to prove that all of the conspirators
    agreed on the same country or the same targets or the same means.
    3
    Defendants also repeatedly mention that this was “the first and only time” all three of them met,
    Amawi Br. at 7, arguing that the lack of any additional group-wide gatherings renders insufficient the
    government’s evidence of a conspiracy, id. at 30. We have made clear, however, that the crime of
    conspiracy requires neither a minimum period of duration nor a minimum number of meetings. See United
    States v. Warshak, 
    631 F.3d 266
    , 309 (6th Cir. 2010) (noting that “the temporal scope of a conspiracy is
    not an essential or material element of the charge” (internal quotation marks omitted)). Thus, the limited
    nature of defendants’ contemporaneous interactions has no bearing on their guilt.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 22
    C. Explosive Device Charges Against Amawi
    Count 3 charged Amawi alone with, from January 10 to January 30, 2005,
    knowingly distributing information pertaining to the manufacture or use of an explosive
    device with the intent that such information be used in furtherance of an activity that
    constitutes a federal crime of violence, in violation of 
    18 U.S.C. § 842
    (p)(2)(A). Count
    4 charged Amawi alone with, on February 6, 2005, knowingly distributing information
    pertaining to the manufacture or use of an explosive device with the intent that such
    information be used in furtherance of an activity that constitutes a federal crime of
    violence, in violation of the same section.
    With respect to Count 3, the government introduced evidence showing that on
    January 30, 2005, Amawi showed Griffin a jihadist video demonstrating in detail how
    to build a bomb vest. While playing the video, Amawi translated the Arabic explanations
    for Griffin, who did not speak Arabic. On appeal, Amawi asserts that he did not show
    Griffin the video for educational purposes and that his failure to successfully transfer the
    video shows that Amawi lacked the requisite intent. Griffin testified that he watched the
    video in the context of compiling training materials and discussed various places to train
    and test the explosives. It was reasonable for the jury to conclude that watching and
    discussing how to apply the techniques taught in this video provided the requisite intent
    for what was clearly the forbidden act of distribution.
    With respect to Count 4, the government introduced evidence showing that, on
    February 6, 2005, Amawi gave Griffin an electronic file containing a guide written in
    Arabic describing the process to manufacture explosives (this file was one of hundreds
    contained on a CD). Amawi claims that because Griffin could not understand Arabic
    and because the pair did not discuss this document, the requisite intent is not present.
    However, the evidence showed that Griffin and Amawi were pooling together documents
    to develop a library for jihad training. A reasonable juror could conclude that this
    document, even if it could not be read by Griffin, could be, and was intended to be,
    assembled into a collection for the benefit of jihadists.
    There is sufficient evidence to support a jury verdict on Counts 3 and 4.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 23
    IV. Expert Testimony
    This court reviews for an abuse of discretion whether the district court properly
    admitted or excluded expert testimony under Federal Rule of Evidence 702. See United
    States v. Bender, 
    265 F.3d 464
    , 472 (6th Cir. 2001). The district court permitted Evan
    Kohlmann to testify on behalf of the United States but excluded Jon Alterman and Reza
    Aslan from testifying on behalf of the defendants. Neither decision constituted an abuse
    of discretion.
    A. Admission of Testimony of Government Witness
    The government sought to call Evan Kohlmann, who specialized in collecting
    information from the internet about terrorist organizations, to testify about how terrorist
    organizations use the internet to recruit and train prospective jihadists. Defendants
    moved to exclude Kohlmann’s testimony in limine. Prior to trial, the district court found
    that Kohlmann would be qualified to testify about how terrorists “use the internet to
    disseminate” the videos, the “difficulties encountered” in obtaining the videos, “the
    apparent purposes in creating and distributing” the videos, and “how internet users may
    be able to locate and access such materials.” However, the district court did not permit
    Kohlmann to testify “about the source, nature, and utility of the materials” because
    discussion of various terrorist organizations (such as Al-Qaeda) that may have created
    such materials would be unduly prejudicial and not relevant. The court granted the
    defendants’ motion to exclude Kohlmann’s testimony, largely to prevent Kohlmann from
    testifying that the defendants viewed electronic material created by groups like Al-
    Qaeda.
    During cross-examination by El-Hindi’s attorney, an FBI computer analyst
    testified that he did not find any internet history on El-Hindi’s computer that indicated
    that El-Hindi had visited a website that led to the bomb-vest video. The United States
    sought to allow Kohlmann to testify to rebut an inference that El-Hindi had never
    accessed the website—notwithstanding the lack of any specific internet history showing
    such access. Specifically, Kohlmann would testify that certain audio that was recorded
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 24
    during conversations between El-Hindi and Griffin was audio that was prominently
    played on numerous jihadist videos. In other words, the government wanted to show that
    even though the evidence that El-Hindi viewed the files did not appear on El-Hindi’s
    computer, the fact that El-Hindi was present when certain audio was being played could
    imply that El-Hindi watched certain terrorist videos. Kohlmann was also called to testify
    about how difficult it was to obtain these videos, showing the great lengths to which the
    defendants went in order to obtain them. The district court permitted Kohlmann to
    testify, finding a sufficient “nexus” between the proffered testimony and other relevant
    evidence, as it helped to prove defendants’ intent in obtaining these videos. However,
    the court said it would contain the testimony if “it start[ed] to ooze out of other
    directions . . . . I think we have enough of a nexus, and my desire is to see to it that the
    evidence is contained and limited.”
    El-Hindi claims that Kohlmann’s testimony covered topics that the district court
    had previously excluded because it impermissibly “insert[ed] the specter of Al Qaeda
    into the trial.” El-Hindi Br. at 30; see also 
    id.
     at 32–35. The bulk of these objections
    occurred while the United States was qualifying Kohlmann as an expert—during this
    process, he referred several times to Al-Qaeda, Usama Bin Laden, Ayman Al-Zawahiri,
    and aspects of terrorist organizations in Iraq. However, there was no reference made to
    the jury of any connection between these known terrorists and the defendants. El-Hindi
    also asserts that Kohlmann was permitted to translate documents from Arabic, even
    though he was not established to be fluent in Arabic.
    Prior to Kohlmann’s testimony, the court notified the jury that Kohlmann may
    refer to “Al-Qaeda or any other foreign terrorist organization” and reminded the jury that
    “there’s no evidence that any of these defendants sought out, communicated with any
    such organization, or on the other hand, that any such organization sought them out or
    undertook to communicate with them at any time whatsoever.” Kohlmann’s testimony
    focused on how the defendants would have obtained the information, not the source of
    the information. This fact was quite probative to show their intent as part of the
    conspiracy. Any allusions to Al-Qaeda or other terrorist organizations or leaders were
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079          USA v. Amawi, et al.        Page 25
    not sufficient to result in reversible error. In light of the jury instruction and the narrow
    focus of what Kohlmann was permitted to testify about, we hold that the admission of
    Kohlmann’s testimony did not constitute an abuse of discretion.
    B. Exclusion of Testimony of Defendants’ Expert Witnesses
    The defendants sought to offer two expert witnesses. The first witness, Reza
    Aslan, would have testified about the history of Islam, jihad, and the rise of modern-day
    jihadist social movements. The second witness, Jon Alterman, would have testified
    about politics and cultural norms in the Middle East, specifically focusing on attitudes
    towards the United States and its foreign policy. The district court granted the United
    States’s motion to exclude the testimony from Aslan and Alterman, reasoning that the
    testimony would not be relevant and would confuse the jury. The court found that “[j]ust
    as this case is not about ‘Terrorism’ writ large, it is not about Islam or jihadist
    movements generally.” Further, the testimony’s “probative value as to [Amawi’s] intent
    is substantially outweighed by its tendency to confuse the issues in this case.”
    On appeal, defendants assert that, without the testimony of Alterman and Aslan,
    the defense could not explain Islamist religion and cultural norms to the jury and that the
    jury was thus “without the necessary knowledge to understand, let alone consider,
    innocent explanations for Appellants’ behavior and statements.” Further, the defendants
    argue that “the district court denied the defense the ability to explain to the jury the
    religion of Islam, to explain Middle Eastern views on the viewing of such materials, and
    explain that viewing such materials does not a ‘terrorist’ make.” Mazloum Br. at 39.
    None of the charges in the indictment were of “terrorism” or related to any
    Islamist jihadist movement. The district court stressed throughout the entire trial that the
    defendants were not accused of terrorism, especially of the extremist Islamist variety.
    Testimony about Islamist and jihadist culture would not aid the jury in determining
    whether the defendants conspired to kill or maim Americans or provided material
    support to persons with such objectives outside the United States. In addition, there is
    a very weak link, if any, between Middle Eastern cultural norms and the relevant states
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 26
    of mind of the defendants with respect to the conspiracy charges. The district court’s
    decision to exclude Alterman and Aslan was not an abuse of discretion.
    V. Denial of Motion for Continuance
    This court reviews a district court’s decision whether to grant or deny a motion
    for a continuance for an abuse of discretion. See, e.g., Warshak, 
    631 F.3d at 298
    .
    “Denial amounts to a constitutional violation only if there is an unreasoning and arbitrary
    insistence upon expeditiousness in the face of a justifiable request for a delay.” 
    Ibid.
    (internal quotation marks omitted).
    After Amawi was indicted in February 2006, the district court appointed the
    Federal Public Defender to represent him. Eight months later, in October 2006, the
    Federal Public Defender moved to withdraw, stating that Amawi did not trust him, as he
    was paid by the government. The district court granted the motion to withdraw on
    October 24, 2006, and appointed two new attorneys to represent Amawi, Bradley F.
    Hubbel and John Czarnecki. After Amawi complained about his representation again,
    on August 27, 2007, the district court appointed Elias Muawad, an Arabic-speaking
    attorney, to Amawi’s defense team. After further complaints, on October 18, 2007, the
    district court appointed William W. Swor as Amawi’s lead counsel and allowed Hubbel
    and Czarnecki to withdraw. Later, Amawi requested the reappointment of the Federal
    Public Defender after Swor could not devote substantial time to prepare his case.
    On January 15, 2008, the Federal Public Defender’s office—including the
    Federal Public Defender himself, three assistants, two research and writing specialists,
    an investigator, and other support staff—was reassigned to the case. Muawad continued
    to represent Amawi. Three days later, the Federal Public Defender moved to continue
    trial for 90 days. At that time, the trial was scheduled to begin about six weeks later on
    March 4, 2008. The Federal Public Defender stated that his team needed more time to
    review the voluminous record—which contained almost 200,000 electronic files and
    300 hours of recorded audio and video evidence—prior to trial. The district court denied
    this request to continue the case, noting that the Federal Public Defender “did do a
    substantial amount of work” on the case when it was initially assigned to represent
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 27
    Amawi. The district court remarked that, based on the projected timeline for the trial,
    the defense would not have to begin its case-in-chief until early June, giving counsel in
    effect five months from the date of the motion. In addition, Amawi’s co-defendant, El-
    Hindi, opposed any continuances. El-Hindi, who had been detained for almost two years
    at the time of trial, “vigorously complained about the continuances” and would have
    moved to sever his trial if an additional continuance were granted. In light of these
    factors, the district court denied the motion for a continuance.
    On March 14, 2008, during the impanelment of the jury, the Federal Public
    Defender filed another motion to continue the trial until April 1, 2008, which the district
    court granted. After Amawi’s conviction, counsel moved for a new trial, arguing that
    the Federal Public Defender was denied adequate preparation time. The district court
    denied this motion.
    The record in this case is indeed gigantic. However, in light of all of the factors
    in this long, complicated, and multi-faceted case, it was not an abuse of discretion for
    the district court to deny the motion for a continuance. First, Amawi created the
    circumstances giving rise to his need for continuances with his repeated requests for new
    counsel. Second, although the Federal Public Defender was only brought back onto the
    case two months prior to trial, in 2006 the Defender’s office had been on the case for
    eight months and had had significant time to review the materials in the case. In 2008,
    upon its reappointment, the Defender was not starting from scratch. Second, the district
    court also had to consider El-Hindi’s concerns. At the time of the trial, El-Hindi had
    been incarcerated for more than two years and adamantly opposed further continuances.
    If the trial were delayed any further, El-Hindi would have moved to sever his trial. The
    district court properly credited the need to try all of the defendants together as a reason
    for denying the continuance.
    In any event, Amawi fails to demonstrate that “the denial resulted in actual
    prejudice to his defense.” Landrum v. Mitchell, 
    625 F.3d 905
    , 927–28 (6th Cir. 2011);
    Warshak, 
    631 F.3d at 298
    . “Actual prejudice may be demonstrated by showing that
    additional time would have made relevant witnesses available or otherwise benefitted
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 28
    the defense.” Powell v. Collins, 
    332 F.3d 376
    , 396 (6th Cir. 2003). Amawi argues that
    if his defense counsel had had more time to review the video evidence, they could have
    identified “irrelevant, prejudicial” evidence and sought its exclusion in limine. Amawi
    points to nothing specific that would have been prejudicial but rather relies on the fact
    that there could have been something prejudicial that could have been excluded. This
    is not enough. Despite the “mountains of discovery dumped at [his] feet,” it was not
    prejudicial to deny Amawi the chance “to excavate in a mine that contained no ore.”
    Warshak, 
    631 F.3d at 299
    .
    VI. First Amendment Jury Instruction
    Prior to the close of the trial, Mazloum requested a jury instruction that stated
    that he could only be convicted if his conduct was not protected by the First
    Amendment:
    The First Amendment of the United States Constitution guarantees to all
    persons the right of freedom of speech, right of freedom of association
    and the right of exercise of religion. A defendant cannot be convicted on
    the basis of his beliefs or the expression of them, even if those beliefs are
    unpopular or favor violence. You may find the defendant guilty if the
    government proves beyond a reasonable doubt that he committed the
    crimes charged in the indictment and that his conduct was not protected
    by the First Amendment.
    The district court declined to give this instruction. However, it did instruct the jury:
    Proof that people simply met together from time to time and talked about
    common interests, such as political views or religious beliefs, or engaged
    in similar conduct, is not enough to establish a criminal agreement. You
    may consider these things in deciding whether the government has
    proved an agreement, but without more, they are not enough.
    On appeal, the defendants assert that the district court’s decision not to provide
    their requested instruction was in error. This court reviews for an abuse of discretion
    whether a district court properly granted or denied an instruction request. United States
    v. Prince, 
    214 F.3d 740
    , 761 (6th Cir. 2000).
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 29
    The district court’s decision to deny the requested instruction was not an abuse
    of discretion. First, although the conspiracy was closely related to, and indeed proved
    by, many of the defendants’ conversations about political and religious matters, the
    conviction was based on an agreement to cooperate in the commission a crime, not
    simply to talk about it. The requested instruction would have directed the jury to acquit
    the defendants, even if every element of the crime was proved beyond a reasonable
    doubt, if the jury made the legal judgment that the conduct was protected by the First
    Amendment. The requested instruction was wrong as a matter of law. See United States
    v. Mick, 
    263 F.3d 553
    , 569 (6th Cir. 2001). Forming an agreement to engage in criminal
    activities—in contrast with simply talking about religious or political beliefs—is not
    protected speech. Second, juries can consider speech as evidence in a conspiracy. “The
    First Amendment . . . does not prohibit the evidentiary use of speech to establish the
    elements of a crime or to prove motive or intent.” Wisconsin v. Mitchell, 
    508 U.S. 476
    ,
    489 (1993) (citing Haupt v. United States, 
    330 U.S. 631
    , 642 (1947)). Finally, the
    instruction the court provided properly informed the jury that merely talking with others
    about political or religious ideas, by itself, is not enough to support a conviction for the
    conspiracy charges. This claim is without merit.
    VII. Entrapment
    Following the jury’s verdict, El-Hindi moved for a judgment of acquittal pursuant
    to Fed. R. Crim. P. 29, arguing that he was entrapped as a matter of law. El-Hindi did
    not present an entrapment defense during trial, and he consistently declined to inform
    the government whether he would present one. The district court denied this motion,
    ruling that El-Hindi waived an entrapment defense by not requesting an entrapment
    instruction and that, alternatively, the evidence presented on predisposition foreclosed
    acquittal as a matter of law. This court reviews a district court’s denial of a post-trial
    motion “based on the purely legal issue[ ] of entrapment as a matter of law” de novo.
    United States v. Al-Cholan, 
    610 F.3d 945
    , 950 (6th Cir. 2010).
    We reject El-Hindi’s claim. A district court can find entrapment as a matter of
    law where (1) the testimony and facts are undisputed; and (2) the evidence demonstrates
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.       Page 30
    a patently clear absence of predisposition. United States v. Clark, 
    957 F.2d 248
    , 250–51
    (6th Cir. 1992). During trial, all three defendants declined to assert an entrapment
    defense. United States v. Carpentier, 
    689 F.2d 21
    , 27 (2d Cir. 1982) (“When entrapment
    is asserted as a defense, the government is entitled to notice of the proposed defense so
    that it may offer evidence of predisposition in rebuttal.”). Thus, the government did not
    have the opportunity—or have the need to—present evidence to demonstrate
    predisposition. However, as the district court noted, the evidence is sufficient to show
    that El-Hindi was a willing and active participant in the conspiracy. Had the government
    been on notice that El-Hindi would assert an entrapment defense, it could have easily
    sustained its burden of showing predisposition. This claim is without merit.
    VIII. Outrageous Conduct
    Following the close of trial, Mazloum moved to dismiss the indictment on the
    ground that Griffin’s conduct in creating a “terrorist cell” “shock[ed] the conscience of
    the public and should not be countenanced.” The district court denied this motion. This
    court reviews whether “outrageous government conduct” is a valid basis for dismissing
    an indictment—a question of law—de novo. United States v. Tucker, 
    28 F.3d 1420
    ,
    1421 n.1 (6th Cir. 1994).
    This court has soundly rejected the “outrageous government conduct” defense,
    looking instead to the doctrine of entrapment to assess a defense that sounds in
    inducement:
    [A] defendant whose defense sounds in inducement is, by congressional
    intent and Supreme Court precedent, limited to the defense of entrapment
    and its key element of predisposition. Defendants may not circumvent
    this restriction by couching their defense in terms of “due process” or
    “supervisory powers.” Thus, we reject as a matter of law the theory upon
    which defendants based their motion to dismiss without regard to the
    particular facts of their case and without reaching the issue of whether or
    not those facts can properly be characterized as “outrageous.”
    
    Id. at 1428
    ; see Al-Cholan, 
    610 F.3d at 952
     (“[W]e have never applied the ‘outrageous
    government conduct’ defense, and have stated that ‘there are . . . strong reasons for
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.       Page 31
    concluding that such a defense simply does not exist.’” (quoting Tucker, 
    28 F.3d at 1427
    )); United States v. Blood, 
    435 F.3d 612
    , 629 (6th Cir. 2006) (holding “that the
    outrageous government conduct defense is not available where the defense is based
    either on a theory of government inducement . . . or on a theory that the ‘undercover
    officer’s involvement in creating [the] crime was so significant that criminal prosecution
    violates due process’” (citation omitted)). At bottom, this claim sounds in entrapment.
    Mazloum would wish, by availing himself of an outrageous-conduct defense, to allege
    that the government entrapped him, without opening the door to the admission of
    evidence of predisposition. Mazloum cannot bypass the risks inherent in our entrapment
    doctrine simply by calling his defense “outrageous conduct.” Even if this court were to
    recognize this defense, for much the same reasons we rejected El-Hindi’s entrapment
    defense we would reject an outrageous-conduct claim on the merits.
    IX. Miranda Warnings
    Amawi was arrested in Jordan and was transferred to a jet that flew him to the
    United States. On board the jet, federal agents restrained him, blocked his view,
    conducted a cavity search, and photographed his body. The agents informed Amawi that
    he was being transported to the United States—not Guantánamo Bay—where he would
    face criminal charges. Agent Steven Gubanich read Amawi his Miranda rights. After
    Gubanich said “if you decide to answer questions now without a lawyer present, you
    have the right to stop answering at any time,” Amawi interrupted the reading, stating,
    “I’m going to wait.” Gubanich asked Amawi if “he wanted to talk to [them] or not.”
    Amawi responded by asking if there was a lawyer on board the jet. Gubanich said there
    was no lawyer on board and finished reading Amawi his Miranda rights. Gubanich
    claimed Amawi’s question meant he “was undecided whether he wanted to talk to us.”
    After Gubanich finished reading the Miranda rights, Amawi signed the Miranda waiver
    form and spoke to the agents. After two hours of interrogation, Amawi asked, “[w]ill
    there be a lawyer?” Gubanich stated he believed Amawi was asking whether he was
    going to, at some point, be afforded an opportunity to speak with a lawyer. Gubanich
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 32
    said, “yes, there would be a lawyer made available . . . through the normal legal process
    in the United States.” Gubanich then continued the interrogation.
    Five hours later, Amawi stated “I guess I’m going to have to wait until I get a
    lawyer.” Gubanich interpreted this to mean Amawi no longer wished to speak with
    agents without an attorney and stopped the interrogation. During the nine-hour
    interrogation, which included breaks, Amawi made numerous inculpatory statements that
    the government used at trial. Amawi admitted that the computers, disk drives, and zip
    drives that the FBI seized in Jordan belonged to him and that everything the FBI seized
    from his bedroom in his Toledo apartment belonged to him.
    The district court denied Amawi’s motion to suppress the statements made
    aboard the jet. The district court determined that Amawi’s statements did not constitute
    an invocation of either the right to remain silent or the right to counsel and that his
    waiver of rights was made knowingly and voluntarily. The district court concluded that
    if there were any invocation of Amawi’s right to remain silent, the invocation was
    conditional. That is, if an attorney was present, he would speak to an attorney first and
    wait to talk to the agents; if an attorney was not present, he would not wait to talk to an
    attorney and instead be willing to talk to the agents right away.
    On appeal, Amawi argues that his statement that he was “going to wait” invoked
    his right to remain silent and his question about whether there was “a lawyer on board”
    invoked his right to counsel. Amawi also asserts that Gubanich failed to clarify
    Amawi’s statement asserting the right to counsel. Amawi claims that Gubanich was
    required to clarify his ambiguous statement because it was made prior to a Miranda
    waiver. Amawi argues that when he said, “I’m going to wait,” and when he asked, “is
    there a lawyer on board,” Gubanich should have inquired to determine if Amawi did in
    fact want to speak. Amawi does not challenge that his later statement—“will there be
    a lawyer”—which came after two hours of interrogation, was not an invocation of his
    right to counsel. This court reviews the findings of fact regarding a suppression motion
    for clear error and the district court’s conclusion de novo. Al-Cholan, 
    610 F.3d at 953
    .
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079           USA v. Amawi, et al.       Page 33
    Though this is not a run-of-the-mill Miranda case, the law controlling it is. A
    defendant’s invocation of his Miranda rights must be clear and unequivocal before
    interrogations must end. Berghuis v. Thompkins, 
    130 S. Ct. 2250
    , 2260 (2010). This
    court has held that “a suspect must assert his right to remain silent with sufficient clarity
    that a reasonable officer would perceive it as such under the circumstances.” Franklin
    v. Bradshaw, 
    545 F.3d 409
    , 414 (6th Cir. 2008). Stating that “I’m going to wait” and
    asking “is there a lawyer on board” is neither a clear nor unequivocal invocation of the
    right to remain silent or the right to counsel. Simply mentioning the prospect of talking
    with an attorney, or waiting to talk until one is present, is not sufficient to put the agent
    on notice that a suspect has invoked his right to remain silent. Gubanich’s interpretation
    of Amawi’s statements—that he was asking if he would be provided an attorney after he
    landed—is reasonable. This is even more reasonable in light of the fact that it seems
    Amawi feared he was being transported to Guantánamo Bay, where he may have thought
    accessing a lawyer could be difficult, especially since the arguably ambiguous remarks
    were made in the middle of the Miranda recitation. When he was fully warned, Amawi
    signed the Miranda form and talked to the agents. After Amawi made these statements,
    the agent was not required to halt the interrogations.
    Further, we reject Amawi’s claim that the agent was required to ask clarifying
    questions in response to Amawi’s ambiguous statements that might have been an attempt
    to invoke his Miranda rights. No such requirement exists. “If a suspect, however,
    makes an ambiguous or equivocal reference to an attorney there is no requirement that
    law enforcement cease questioning.” United States v. Montes, 
    602 F.3d 381
    , 385
    (5th Cir. 2010) (citing Davis v. United States, 
    512 U.S. 452
    , 459 (1994)). Amawi cites
    Kyger v. Carlton, 
    146 F.3d 374
     (6th Cir. 1998), to no avail. That case simply held that
    an officer’s response to a suspect’s ambiguous statement was “an inappropriate effort at
    pressuring Kyger to answer, rather than an appropriate attempt to get Kyger to clarify
    his response.” 
    Id. at 379
    . Kyger did not hold that there was an obligation for an officer
    to clarify an ambiguous response. Here, the agent’s responses contained no pressure
    whatsoever. The district court did not err in denying Amawi’s motion to suppress.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079          USA v. Amawi, et al.      Page 34
    X. Sentencing Appeal
    Each defendant had a total offense level of 58. None of the defendants had any
    prior criminal history, though in light of the terrorism enhancement pursuant to United
    States Sentencing Guidelines (U.S.S.G.) § 3A1.4, each of their criminal history
    categories was increased to VI. Each defendant had a recommended sentence under the
    Guidelines of life in prison. The district court varied downward in sentencing each
    defendant. Amawi received a sentence of 240 months of imprisonment; El-Hindi
    received a sentence of 144 months of imprisonment; Mazloum received a sentence of
    100 months of imprisonment. The district court denied a request to depart downward
    due to over-representation of the defendants’ criminal history.
    The United States has cross-appealed and asserted that these sentences are both
    procedurally and substantively unreasonable.
    A. Standard of Review
    This court reviews a district court’s sentencing determinations for
    “reasonableness.” See Pepper v. United States, 
    131 S. Ct. 1229
    , 1241 (2011) (citing Gall
    v. United States, 
    552 U.S. 38
    , 49–51 (2007)). We “use an abuse of discretion standard
    to assess whether a sentence is unreasonable.” United States v. Christman, 
    607 F.3d 1110
    , 1117 (6th Cir. 2010). A district court abuses its discretion when it imposes a
    sentence that is either procedurally or substantively unreasonable. Ibid.; see United
    States v. Hall, 
    632 F.3d 331
    , 335 (6th Cir. 2011); United States v. Baker, 
    559 F.3d 443
    ,
    448 (6th Cir. 2009) (“[W]e review a district court’s sentencing decisions ‘under a
    deferential abuse-of-discretion standard’ for reasonableness.” (quoting Gall, 
    552 U.S. at 51
    )).
    B. Procedural Unreasonableness
    “A sentence is procedurally unreasonable where a district court . . . fails to
    consider the 
    18 U.S.C. § 3553
    (a) sentencing factors, selects a sentence based upon
    erroneous facts, or fails to adequately explain its chosen sentence and its deviation, if
    any, from the Guidelines range.” Hall, 
    632 F.3d at 335
    . The United States on appeal
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 35
    argues that the “sentences were therefore procedurally unreasonable because the judge
    failed adequately to explain them, based them on erroneous facts, and failed adequately
    to take into account the relevant statutory sentencing factors set out in 
    18 U.S.C. § 3553
    (a).” United States Br. at 120.
    The district court held a separate sentencing hearing for each defendant over the
    course of two days, where numerous witnesses testified and provided information for the
    court to consider. The United States may disagree with the conclusions the district court
    drew, but it does not point out any “erroneous facts” relied on by the court. The district
    court accepted the presentence report’s calculations as accurate, and there is no assertion
    that the Guidelines were calculated incorrectly. The district court repeatedly mentioned
    and discussed each of the factors listed under 
    18 U.S.C. § 3553
    (a) and explained the
    ways in which the facts of this case caused it to vary from the Guidelines. The United
    States’s procedural-reasonableness argument—which it only asserts half-heartedly—is
    without merit. Procedurally, the sentence was reasonable. At its heart, this appeal is a
    challenge to the substantive reasonableness of the sentence, which we consider next.
    C. Substantive Unreasonableness
    “A sentence is substantively unreasonable if the district court ‘selects a sentence
    arbitrarily, bases the sentence upon impermissible factors, fails to consider relevant
    sentencing factors, or gives an unreasonable amount of weight to any pertinent factor.’”
    Hall, 
    632 F.3d at 335
     (quoting Baker, 
    559 F.3d at 448
    ). “In assessing substantive
    unreasonableness [this court] look[s] to ‘the totality of the circumstances, including the
    extent of any variance from the Guidelines range,’” giving due deference to the district
    court’s decision. Christman, 
    607 F.3d at 1118
     (quoting Gall, 
    552 U.S. at 51
    ).
    The United States contends that the sentences were “substantively unreasonable
    because the district judge afforded unreasonable weight to factors he deemed to justify
    substantial deviations from the recommended guideline sentence.” We disagree. The
    sentence is substantively reasonable.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079       USA v. Amawi, et al.       Page 36
    The government claims that the district court “either virtually disregarded or
    merely paid lip service to the pertinent Section 3553(a) sentencing factors.” 
    18 U.S.C. § 3553
    (a) provides:
    The court shall impose a sentence sufficient, but not greater than
    necessary, to comply with the purposes set forth in paragraph (2) of this
    subsection. The court, in determining the proper sentence to be imposed,
    shall consider—
    (1) the nature and characteristics of the offense and the history and
    characteristics of the defendant;
    (2) the need for the sentence imposed—
    ...
    (B) to afford adequate deterrence to criminal conduct;
    (C) to protect the public from further crimes of the defendant;
    ...
    (6) the need to avoid unwarranted sentence disparities among defendants
    with similar records who have been found guilty of similar conduct . . . .
    The district court discussed and considered each factor in detail. However, the
    government challenges the “amount of weight [given] to [the] pertinent factor[s].” Hall,
    
    632 F.3d at 335
    .
    1. Nature and Characteristics of the Defendant
    With respect to the nature and characteristics of the offense, the government
    points to Amawi’s poor behavior while in pretrial confinement, which resulted in
    disciplinary actions. The district court remarked that there was “simply not any
    justification” for Amawi’s behavior. The government claims that this poor behavior,
    which the court recognized, cuts against the district court’s determination that “on
    balance” Amawi’s history and characteristics did not “justify a life term of
    imprisonment.” The government asserts that the district judge gave “little rationale to
    justify his substantial variance from the recommended Guideline sentence, and certainly
    none that would overcome the seriousness of Amawi’s offenses and his poor disciplinary
    record while awaiting trial.” For Mazloum, the government claims that the district court
    should not have given much weight to the fact that Mazloum assumed certain
    responsibilities, such as working toward a degree and running a business.           The
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 37
    government raises no argument with respect to the nature and characteristics of El-
    Hindi’s history.
    These arguments are quite weak and selectively cherry-pick and focus on very
    small segments of the voluminous record that show aspects of the defendants’ nature and
    characteristics that cut against varying downward. There was more than enough
    evidence adduced during the sentencing hearings that would reflect positively on the
    nature and characteristics of the defendants’ history to counsel a downward variance.
    The district court’s consideration of these factors, and the weight attached to them, did
    not constitute error.
    2. The Need To Afford Adequate Deterrence To Criminal Conduct
    The government cites earlier statements made by the district court regarding
    Amawi recruiting Mazloum into the conspiracy and Amawi’s extensive library of
    jihadist materials as evidence that “the judge’s decision that a 60 percent reduction in the
    recommended Guideline sentence would adequately deter Amawi was plainly
    unreasonable.” United States Br. at 132. With respect to Mazloum, the government
    claims that the district judge simply stated “his belie[f] that this [sentence] will
    adequately deter the defendant.”       Id. at 133 (internal quotation marks omitted).
    However, the government notes that the district court also stated that it feared that
    Mazloum’s zeal “might someday flare back up.” Id. at 134 (internal quotation marks
    omitted). With respect to El-Hindi, the government claims that the district court did not
    discuss at all the issue of deterrence. The district court also gave some weight to the age
    of the defendants. At the time of the sentencing, Amawi was 29, El-Hindi was 46, and
    Mazloum was 28. The government asserts that this was in error, as “nothing suggests
    that Amawi’s zeal for engaging in violent jihad decreased as he aged. Consequently, his
    age upon release should have had no bearing on specific deterrence.”
    We disagree. First, with respect to Amawi, it was reasonable for the district court
    to credit the fact that if he serves his entire sentence, he would have spent nearly half of
    his remaining life in prison when released. Further, it was reasonable for the district
    court to conclude that the lifetime of supervised release included in the sentence would
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 38
    be additional deterrence. The district court had no doubt that “Amawi will be very
    closely monitored and supervised and his conduct will be very closely overseen and that
    will provide the protection that the government seeks in its request for a lifetime term.”
    The district court did not merely recite the sentencing factors or pay lip service to them.
    Second, with respect to Mazloum, the district court certainly expressed concerns
    about Mazloum perhaps engaging in criminal conduct in the future but, weighing all the
    circumstances, determined that this factor did not counsel against a variance downwards.
    The court’s explanation on this element was thoughtful and well-reasoned.
    Third, with respect to El-Hindi, the district court stated that his sentence would
    serve as a “signpost” warning others not to engage in such conduct.
    [A]lthough I do not think that a sentence of this length is necessary to
    either incapacitate or to deter Mr. El-Hindi from further criminal conduct
    as to either of these sets of crimes of which he stands convicted;
    nonetheless, I think that it is appropriate for the government to ask me
    and for me to respond to that request to try and communicate through this
    sentence, and I think this does so, to those who might be tempted to take
    their opposition to our government and its policies, whatever those
    policies may be, whether they’re domestic policies or foreign policies,
    but for those who might be tempted to take the first steps in the path
    towards generating a risk of harm to our fellow citizens or to anyone else
    ....
    The court’s consideration of deterrence was stated succinctly and was not unreasonable.
    Though these reasons may be unsatisfactory to the government, the district court
    gave due attention and reasonable consideration to whether their sentences would
    provide adequate deterrence to future criminal conduct.
    3. Need to Avoid Sentencing Disparities
    The need to avoid sentencing disparities is really the gravamen of the
    government’s appeal. The government cites a number of recent cases with much heavier
    sentences involving convictions of this type. In United States v. Abu Ali, a divided panel
    of the Fourth Circuit reversed the district court’s decision to sentence the
    defendant—who had a total offense level of 49 and a criminal history category of VI—to
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 39
    360 months for violating, inter alia, 18 U.S.C. §§ 2339A and 2339B. 
    528 F.3d 210
    , 258
    (4th Cir. 2008). The court found that “[b]ased on the foregoing circumstances of this
    case, we find the district court’s significant downward deviation not to be justified.” 
    Id. at 269
    . In United States v. Mustafa, the Second Circuit upheld a sentence of life
    imprisonment for violating, inter alia, 18 U.S.C. §§ 2339A, 2339B, 842, and 956. 406 F.
    App’x. 526, 528 (2d Cir. 2011). Recently, in the “Millennium Bomber” case, the Ninth
    Circuit en banc, in a split decision, reversed the district court’s 264-month sentence of
    Ahmed Ressam for violating, inter alia, 18 U.S.C. §§ 2332b and 842, finding that the
    sentence was too light. United States v. Ressam, 
    679 F.3d 1069
    , 1071–72 (9th Cir. 2012)
    (en banc) (“Upon our review of the record, we conclude that the district court abused its
    discretion in sentencing Ressam as it did. As a result, we conclude that the sentence
    imposed by the district court was substantively unreasonable.”). The government claims
    that the “resulting disparity [between the sentence of the three defendants here and] with
    these other sentences, plainly contravened the objective of Section 3553(a)(6).” The
    government also challenges the failure of the district court to explain the disparity
    between the sentence of Amawi (240 months), El-Hindi (144 months), and Mazloum
    (100 months).
    The district court did not create unwarranted disparities. Though these other
    cases all involve terrorist-related offenses, they bear significant factual dissimilarities
    that do not create any reversible tension with the district court’s downward variance.
    Our case is not on the same order of magnitude as Ressam, where the so-called
    “Millennium Bomber” was apprehended trying to enter the United States with a vehicle
    full of explosives. Certainly Amawi conspired to obtain explosives, but he never
    managed to obtain them. The defendant in Abu Ali was convicted of charges stemming
    from his affiliation with an Al-Qaeda terrorist cell in Saudi Arabia. The government
    adduced no proof that Amawi was affiliated with Al-Qaeda or any other terrorist group.
    The defendant in Mustafa admitted to killing people and associating with terror groups.
    There was absolutely no evidence introduced at trial that any of the defendants actually
    killed anyone. Ressam, Abu Ali, and Mustafa are sufficiently different that the district
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 40
    court was not unreasonable. We also note that Mustafa, in upholding a life sentence, did
    not hold that this sentence was always appropriate in such cases. In light of the fact that
    these other cases involved much more serious conduct, the district court properly
    weighed factors with respect to avoiding sentencing disparities.
    In addition, having reviewed the classified record that was before Chief Judge
    Carr, in light of the § 3553(a) factors, we have no additional reasons to find error in the
    sentences given to the defendants.
    XI. Denial of Amawi’s Motion For A New Trial
    After the close of trial in December 2008, Amawi filed a motion for new trial
    pursuant to Fed. R. Crim. P. 33. In the motion, Amawi contended that the district court
    erred in denying his request to review evidence relating to a Syrian with whom Amawi
    had communications concerning the acquisition of explosives. The district court denied
    the motion, stating that the court had “undertaken a review of the classified information
    presented ex parte in light of the defendant’s contentions in his new trial motion.
    Nothing was disclosed there that, by hindsight, should have been disclosed to defense
    counsel.”
    On June 13, 2011, Amawi filed another motion for a new trial. Amawi
    contended that his defense team had learned of the whereabouts of the Syrian, allegedly
    named Hosam Tarsha, after speaking with someone who may have been Tarsha’s
    mother. Amawi’s motion sought to compel the government to furnish information,
    including classified information, concerning Hosam Tarsha, and any facts that it might
    possess relating to Amawi’s contacts with him.
    The district court directed Amawi to supplement the motion with an affidavit
    demonstrating that he had contacts with the Syrian and how those conversations could
    have generated any exculpatory information that the government could possess. Amawi
    declined to provide such an affidavit, fearful that it would be incriminating. The district
    court denied the motion on the merits, finding that the “newly discovered evidence” did
    not support the new claim that Amawi was actually only involved in a scheme with the
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 41
    Syrian to bilk Griffin out of money under the pretenses of assisting terrorists. The
    district court concluded that Amawi “produced no newly discovered evidence that ha[d]
    any bearing on the issues at his trial.” Finally, the district court concluded, after
    reviewing the government’s ex parte submissions under CIPA, that the government had
    not produced any “evidence that was of the slightest possible use to the defense” with
    respect to the Syrian or any other topic and that there was no basis for believing that the
    government would have “withheld information, if it had any, of any pertinence to
    [Amawi’s] contacts with the Syrian.”
    We agree with the district court’s denial of Amawi’s motion for a new trial on
    the merits. Amawi’s motion was vague, speculative, and only established that someone,
    who may be named Hosam Tarsha, was in Syria. Nothing in the motion warranted
    granting a new trial. Further, based on our independent review of the classified record,
    we conclude that there is no evidence that would have been “relevant and helpful” to the
    defense with respect to the Syrian. Yunis, 
    867 F.2d at 622
    . The district court did not
    abuse its discretion in denying Amawi’s motion for a new trial.
    XII. Conclusion
    All opinions and judgments of the district court are AFFIRMED.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 42
    __________________
    CONCURRENCE
    __________________
    KAREN NELSON MOORE, Circuit Judge, concurring in the judgment. I concur
    in the majority’s decision to affirm the district court’s judgments on all issues in this
    appeal. But because I found the questions concerning the sufficiency of the evidence
    and the exclusion of two defense witnesses particularly difficult under the circumstances
    of this case, I write separately to lay out my analysis of those issues.
    I. SUFFICIENCY OF THE EVIDENCE
    Amawi, Mazloum, and El-Hindi each disputes the sufficiency of the evidence
    supporting some or all of the convictions in this case. The superseding indictment,
    which was filed on February 2, 2007, charged the defendants as follows.
    The first two of the counts in the superseding indictment involve conspiracies and
    applied to all three defendants. Specifically, Count 1 charged Amawi, Mazloum, and El-
    Hindi with willfully conspiring and agreeing “to kill or maim persons in locations
    outside of the United States, [including] U.S. armed forces personnel serving in Iraq,”
    in violation of 
    18 U.S.C. § 956
    (a)(1). R. 186 (Superseding Indictment ¶ 8). Count
    2 charged the three with conspiring and agreeing in violation of 18 U.S.C. § 2339A “to
    provide material support and resources, knowing and intending they were to be used in
    preparation for and in carrying out a violation of Title 18, United States Code, Section
    2332 (killing of U.S. nationals).” Id. ¶¶46, 58. The superseding indictment also charged
    Amawi and El-Hindi with two counts each of knowingly distributing to Griffin
    “information pertaining to, in whole or in part, the manufacture or use of an explosive
    or destructive device” with the intent that Griffin use those materials to train others “to
    commit and further a Federal crime of violence,” in violation of 
    18 U.S.C. § 842
    (p)(2)(A). 
    Id. ¶¶ 60, 62, 64, 66
    . All three defendants contest the sufficiency of the
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                  USA v. Amawi, et al.            Page 43
    evidence with respect to both conspiracy counts, and Amawi challenges his conviction
    on the two distribution charges.1
    A. Conspiracy Charges
    As to the conspiracy charges, the defendants maintain that the government failed
    to prove any actual agreement to commit the predicate offenses relating to killing or
    maiming U.S. nationals abroad. See Amawi Br. at 24 (“The evidence showed Amawi,
    at most, had a general interest in training in the tactics of self-defense, security, and
    combat, but did not have any plan or agreement with others to put that training to use in
    any particular venue or at any particular time.”); El-Hindi Br. at 13 (“Not only was there
    no violent act in this case. There was not a plan for an attack. There was no bomb
    possessed by anyone, no gun acquired by any defendant, no explosive material, no map,
    no potential targets.”); Mazloum Br. at 13 (“It is not required that the Government prove
    that the conspirators agreed on specific details of a plan, only that they agreed to its
    essential nature. However, if there is no meeting of the minds, there is no conspiracy.”
    (citation omitted)). According to the defendants, there was no unified criminal objective,
    and thus, there also was no conspiracy.
    “In reviewing the sufficiency of the evidence, the relevant inquiry is whether,
    after reviewing the evidence in the light most favorable to the prosecution, any rational
    trier of fact could have found the essential elements of the crime beyond a reasonable
    doubt.” United States v. Sliwo, 
    620 F.3d 630
    , 633 (6th Cir. 2010) (internal quotation
    marks omitted). We review the evidence de novo to determine whether, when taken in
    the light most favorable to the government, there is “substantial and competent evidence
    upon the record as a whole” to support each essential element of the offense. United
    States v. Barnett, 
    398 F.3d 516
    , 521–22 (6th Cir. 2005) (internal quotation marks
    omitted). In doing so, however, “we may not reweigh the evidence, reevaluate the
    credibility of witnesses, or substitute our judgment for that of the jury.” United States
    1
    Although El-Hindi’s statement of issues challenges the sufficiency of the evidence supporting
    his two convictions under 
    18 U.S.C. § 842
    (p)(2)(A), El-Hindi’s brief thereafter fails to mention the issue
    again or present any arguments against the convictions. Thus, his failure to present any substantive
    challenge waives the issue on appeal.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                   USA v. Amawi, et al.            Page 44
    v. Warman, 
    578 F.3d 320
    , 332 (6th Cir. 2009) (quoting United States v. Martinez, 
    430 F.3d 317
    , 330 (6th Cir. 2005)), cert. denied, 
    130 S. Ct. 1103
     (2010).
    “[T]he essence of the crime of conspiracy is agreement,” and the government
    therefore “must show that each alleged member agreed to participate in what he knew
    to be a collective venture directed toward a common goal.” United States v. Warner,
    
    690 F.2d 545
    , 549 (6th Cir. 1982) (internal quotation marks omitted).2 Moreover, “[a]
    conspirator must intend to further an endeavor which, if completed, would satisfy all of
    the elements of a substantive criminal offense, but it suffices that he adopt the goal of
    furthering or facilitating the criminal endeavor.” Salinas v. United States, 
    522 U.S. 52
    ,
    65 (1997). Thus, “[a] conspiracy requires: ‘(1) An object to be accomplished.
    (2) A plan or scheme embodying means to accomplish that object. (3) An agreement or
    understanding between two or more of the defendants whereby they become definitely
    committed to cooperate for the accomplishment of the object by the means embodied in
    the agreement, or by any effectual means.’” United States v. Gibbs, 
    182 F.3d 408
    , 420
    (6th Cir.) (quoting United States v. Bostic, 
    480 F.2d 965
    , 968 (6th Cir. 1973)), cert.
    denied, 
    528 U.S. 1051
     (1999).
    In establishing the existence of a conspiratorial agreement, the government is not
    required to show that each conspirator knew every detail of the conspiracy. It does,
    however, have to “show that a particular defendant knew the object of the conspiracy
    and voluntarily associated himself with it to further its objectives.” United States v.
    Crossley, 
    224 F.3d 847
    , 856 (6th Cir. 2000) (internal quotation marks omitted).
    “Although only slight evidence” is required to link a defendant to a conspiracy, “mere
    2
    Although the statutory requirements for engaging in a particular type of conspiracy may
    vary—for instance, 
    18 U.S.C. § 371
     requires proof of an overt act and 
    21 U.S.C. § 846
     does not, see
    United States v. Shabani, 
    513 U.S. 10
    , 14 (1994)— in cases where the statute is otherwise silent on the
    requirements for a conspiratorial agreement, courts’ descriptions of what suffices as proof of that element
    are generally consistent across various conspiracy statutes. Cf. Robert M. Chesney, Beyond Conspiracy?
    Anticipatory Prosecution and the Challenge of Unaffiliated Terrorism, 
    80 S. Cal. L. Rev. 425
    , 451 (2007)
    (applying general principles of conspiracy to determine the scope of liability under various terrorism-
    related statutes and noting that “[m]ost conspiracy statutes—including the general federal conspiracy
    provision, § 371—are silent regarding the issue of agreement specificity, leaving the issue to be worked
    out in the case law”). Because there is no case law that directly addresses the requirements for a
    conspiratorial agreement under either § 956 or § 2339A and because both statutes are silent on the issue,
    this analysis will apply the general common-law principles that are applied in cases involving other
    conspiracy statutes in order to evaluate whether the evidence supports an agreement here.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.       Page 45
    association with conspirators is not enough”; instead “[t]he evidence must at least be
    sufficient that a reasonable juror could infer knowledge of and acquiescence in the
    agreement.” Gibbs, 
    182 F.3d at 422
     (internal quotation marks omitted). Even so, an
    agreement need not be explicit to establish a common criminal objective; “tacit or
    material understanding among the parties is sufficient.” United States v. Walls, 
    293 F.3d 959
    , 967 (6th Cir.), cert. denied, 
    537 U.S. 1022
     (2002). Thus, “[a] conspiracy may be
    inferred from circumstantial evidence which may reasonably be interpreted as
    participation in a common plan.” 
    Id. 1
    . The Alleged Agreement
    For both conspiracy charges, the government focuses on a single meeting among
    the defendants as the onset of their illicit agreement. The three defendants were together
    only once, at a meeting on February 16, 2005. There, the FBI informant, Darren Griffin,
    generally led the discussion concerning the alleged training program and the defendants’
    respective plans for implementing the training abroad. Griffin’s proposals were explicit;
    for example, he proposed training methods akin to those used by Osama bin Laden and
    the “brothers” in Hamas or Hezbollah, but “with a twist of what the U.S. does with their
    tactics.” The defendants—and particularly Amawi and Mazloum—responded positively
    to these descriptions. When Griffin stated that the training group needed “committed
    brothers,” for example, Mazloum responded that his brother “definitely” would join
    them. Both Mazloum and Amawi repeatedly requested training on particular topics,
    such as sniper use, explosives, and bomb making. El-Hindi similarly expressed interest
    in sniper training, noting that it was “the most important” because the U.S. Army is
    “petrified of snipers.” In response to Griffin’s proposals to do tactical training using
    paintball and eventually to teach demolitions, Mazloum responded, “We have to move
    on man . . . time is gold.”
    The men also discussed possible objectives for the training operation. Griffin
    explained that the tactics he would teach would differ slightly depending on where each
    of them wanted to go. He stated, “I know [Amawi] wants to go to Iraq, you know so, I’ll
    prepare him for that. And, you know, brother [El-Hindi], maybe you want to go to
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                   USA v. Amawi, et al.             Page 46
    [Palestine], so there’ll be some different tactics and techniques in there.” Amawi then
    volunteered that most important to him was the ability to teach others, and Griffin
    responded that he considered the three of them his “lieutenants,” and that they would
    each eventually start their own “cells.” Amawi also stated that his “main targets” were
    presidents and leaders in the Arabic world. Mazloum indicated that he was thinking of
    going to Iraq or the al-Sham countries. A short time later, however, Mazloum asserted
    his interest in joining the Lebanese army, in part because he would receive helpful
    training through a six-month stint.
    The February 16 meeting also included some discussion of funding. When asked
    whether he had looked into obtaining grants, El-Hindi responded that “there’s a lot of
    them.” Mazloum wondered what the grants were for and Griffin indicated that “it’s for
    support here and support, you know our brothers overseas too.” Mazloum then offered
    to give Griffin money to find the right supplies. Mazloum also asked whether it was
    possible to get money into Iraq. In Arabic, Amawi, El-Hindi, and Mazloum then debated
    whether fighters in Iraq needed money, and Mazloum stated “[t]hey need weapons
    but money brings weapons . . . [w]e are here, how can we provide them with weapons?”
    El-Hindi suggested that the fighters needed man-power instead.3
    Toward the end of the meeting, Griffin tried to solidify plans for all four to meet
    again for handgun training, though the effort proved unsuccessful. El-Hindi, however,
    reaffirmed his interest in training and suggested that he might be able to recruit some
    “brothers” in Michigan who already had a military background from serving in Qatar.
    Throughout the meeting, the four discussed the need to involve only those who could be
    trusted. After Griffin explained the need to be extremely “security conscious,” Mazloum
    asked Griffin what they should tell anyone who asked what they were doing with Griffin,
    and Griffin responded that they should use his security company as a cover.
    3
    Although El-Hindi was less vocal about his desire to train at the February 16 meeting, his
    statements on other occasions suggest that he was in agreement with the goal of receiving training in order
    to join the fight abroad. For instance, El-Hindi affirmatively expressed interest in participating in a plan
    to train that involved “stuff that is going to take us away from our kids.”
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                USA v. Amawi, et al.            Page 47
    The discussion continued after Griffin, Amawi, and Mazloum departed El-
    Hindi’s home. Mazloum at one point asked whether it was possible to access the
    Americans by dressing like them. Mazloum also suggested that they could forewarn the
    mujahideen of their arrival to avoid being mistaken for an enemy. Amawi expressed
    hesitancy about making too many connections in order to avoid implicating others if he
    were caught. On the question of reaching Iraq, Mazloum suggested that he had “many
    ways” to get there and that he could buy and sell parts using his legitimate business, and
    Amawi said that he could reach the area because he was a travel agent. Both Amawi and
    Mazloum, however, agreed that they needed to train first.
    2. Count 1: Conspiracy in Violation of 
    18 U.S.C. § 956
    (a)(1)
    In order to prove that Amawi, Mazloum, and El-Hindi conspired to kill or maim
    persons outside of the United States in violation of 
    18 U.S.C. § 956
    , the government had
    to demonstrate that the defendants agreed “to commit acts constituting murder,
    kidnapping, and maiming.” United States v. Hassoun, 
    476 F.3d 1181
    , 1187 (11th Cir.
    2007). The government also had to establish that each defendant (1) “willfully joined
    the agreement with the intent to further its purpose”; (2) that after the conspiracy was
    initiated, at least one of the defendants committed “at least one overt act in furtherance
    of the object of the conspiracy; and” (3) that “at least one of the conspirators was within
    the jurisdiction of the United States when the agreement was made.” United States v.
    Wharton, 
    320 F.3d 526
    , 538 (5th Cir.), cert. denied, 
    539 U.S. 916
     (2003).4
    There is no doubt that the record is replete with reprehensible comments by the
    defendants and with instances in which the defendants watched and commented
    favorably on deplorable materials that relish the killing or maiming of many individuals
    and groups, including U.S. troops. Each defendant was also quite clear in a number of
    4
    In full, 
    18 U.S.C. § 956
    (a)(1) provides
    Whoever, within the jurisdiction of the United States, conspires with one or more other
    persons, regardless of where such other person or persons are located, to commit at any
    place outside the United States an act that would constitute the offense of murder,
    kidnapping, or maiming if committed in the special maritime and territorial jurisdiction
    of the United States shall, if any of the conspirators commits an act within the
    jurisdiction of the United States to effect any object of the conspiracy, be punished as
    provided in subsection (a)(2).
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 48
    instances that one of the goals in receiving training was to enable him to go abroad and
    join the fight against the U.S. military. In furtherance of this objective, El-Hindi
    additionally took steps to obtain grant funding to cover some of the training costs, and
    Mazloum and Amawi actively began engaging in firearms training with Griffin.
    Other evidence in the record, however, supports the view that the defendants also
    had other reasons for seeking out training. Most prominent of these was the need for
    self-protection, which was mentioned repeatedly. On one occasion, for example,
    Mazloum stated that “all we are doing is training I mean . . . [i]f we are ever back in the
    home country one day, and something happens then maybe, but over here there is
    nothing. We are not this kind of people.” A few seconds later, Amawi responded,
    “[s]omeone comes to your house, why not know how to deal with them. You know?
    You do this for yourself first.” In a separate encounter, Amawi expressed a similar
    concern that people in Jordan “don’t know how to use a gun” and would therefore be
    unable to defend their country and their families if necessary.
    Despite varying evidence concerning the nature of the training objective, the jury
    specifically determined that the object of the defendants’ conspiracy was twofold: to
    murder and to maim persons in another country. This is true notwithstanding the fact
    that the defendants did not agree on a particular target, though such specificity with
    respect to time, place, or victim generally is not required to support a conspiracy
    conviction. See, e.g., Williamson v. United States, 
    207 U.S. 425
    , 449 (1908) (“It was not
    essential to the commission of the crime that in the minds of the conspirators the precise
    persons to be suborned, or the time and place of such suborning, should have been
    agreed upon, . . . as the criminality of the conspiracy charged consisted in the unlawful
    agreement to compass a criminal purpose . . . .”); see also Robert M. Chesney, Beyond
    Conspiracy? Anticipatory Prosecution and the Challenge of Unaffiliated Terrorism,
    
    80 S. Cal. L. Rev. 425
    , 451 (2007).
    Notwithstanding concern regarding the degree of attenuation between the
    defendants and their alleged goals as well as the breadth of their purported criminal
    objective, I believe that a reasonable juror could have found the evidence sufficient to
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 49
    support the existence of a conspiratorial agreement. The Eleventh Circuit’s recent
    decision in United States v. Jayyousi, 
    657 F.3d 1085
    , 1105 (11th Cir. 2011), cert. denied,
    — S. Ct. —, 
    2012 WL 1079567
     (2012), is somewhat illustrative. There, the defendants
    had formed a support cell that was connected to multiple strands of the global terrorism
    movement. The government also established that the defendants were engaged in
    coordinated efforts both to recruit members for the global movement and to send money
    and equipment overseas to various groups. 
    Id. at 1104
    . In finding the evidence
    sufficient to support an illicit agreement, the court found it to be enough that the
    conspirators had a shared “intent to support jihad violence overseas to establish Islamic
    states.” 
    Id. at 1105
    .
    Although this case shares some characteristics with Jayyousi, the evidence here
    is not nearly as substantial. For example, the agreement at the February 16 meeting did
    not go much beyond the need to obtain tactical training, which is not in itself an unlawful
    act. Apart from sharing a common ideology and seeking training from Griffin, there was
    no specific common plan with respect to the larger goal of murdering or maiming
    persons abroad. Unlike Jayyousi, there was also little evidence to suggest that the
    defendants were engaged in coordinated efforts to support one another in furthering their
    objective of committing violent jihad abroad. See 
    id. at 1105
    . The defendants in
    Jayyousi, moreover, had actual connections with groups in the jihad movement, whereas
    here, the defendants had no such ties. Thus, to some extent the defendants appear merely
    to have had similar individual objectives, which they sought to achieve through
    commonly available means.
    Nevertheless, given the broad scope of prohibited conduct under § 956, I cannot
    conclude that no reasonable juror could have found the defendants guilty of the charged
    offense. Although the agreement did not extend to specific targets or locations, each
    defendant individually expressed an intent to pursue the objective of killing or maiming
    abroad at an indeterminate time in the future, and all agreed to obtain training from
    Griffin at least in part for the purpose of attaining that ultimate goal. Evidence also
    supports that the defendants each took steps directed at following through with the
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 50
    training objective. El-Hindi, for example, sought to obtain grant funding to support the
    training operations, and Mazloum and Amawi began their “training” by accompanying
    Griffin to a firing range where they could learn to use firearms. Moreover, both at the
    February 16 meeting and on multiple occasions before and after, each defendant also
    specified an interest in other particular types of training, often while watching and
    commenting on websites and videos, and identified why those skills—which included
    training in the use of explosives, sniper rifles, and IEDs—would be useful once overseas.
    Furthermore, although the evidence supporting the defendants’ cooperation with
    one another to attain their objective was less than in Jayyousi, it was not nonexistent.
    At the February 16 meeting and on other occasions, the defendants discussed the size of
    their group and the need to find other “trusted brothers” in order to practice larger-scale
    tactical strategies. The record also shows that each defendant in fact sought to recruit
    other “trusted brothers” to join the jihad training. Amawi, for example, recruited
    Mazloum, who recruited his brother, Bilal, and El-Hindi had multiple conversations with
    Griffin about training two of El-Hindi’s relatives, Khaleel and Zubair Ahmed, who had
    already traveled abroad in an attempt to perform jihad. El-Hindi also suggested at one
    point the possibility of recruiting a few “brothers” he knew from Michigan.
    Additionally, although the February 16 meeting was the only instance in which all three
    defendants were together, at least two of the three defendants met together with Griffin
    on a number of other occasions both before and after that date.
    Taken together, these facts establish that the defendants agreed to engage in
    training that had the purpose of allowing the defendants to join the fight against
    individuals in Iraq and elsewhere, thereby engaging in acts constituting murder or
    maiming of U.S. personnel. Under basic principles of conspiracy law, it matters not that
    the defendants were far from achieving that ultimate objective. See Iannelli v. United
    States, 
    420 U.S. 770
    , 779 (1975) (“The basic rationale of the law of conspiracy is that
    a conspiracy may be an evil in itself, independently of any other evil it seeks to
    accomplish.” (internal quotation marks omitted)). Even if, as the defendants maintain,
    Griffin proactively led the most pertinent discussions about the activities of the proposed
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                   USA v. Amawi, et al.            Page 51
    training group, the defendants voluntarily associated themselves with those proposals
    with full knowledge of their intended objective. See Crossley, 
    224 F.3d at 856
    . Under
    our precedents, no more is required. Accordingly, I agree with the majority that the
    defendants’ convictions under § 956 must be affirmed.
    3. Count 2: Conspiracy in Violation of 18 U.S.C. § 2339A
    Title 18 U.S.C. § 2339A makes it a punishable offense to “provide[] material
    support or resources or conceal[] or disguise[] the nature, location, source, or ownership
    of material support or resources, knowing or intending that they are to be used in
    preparation for, or in carrying out, a violation of” one of a number of enumerated
    sections, including 
    18 U.S.C. § 2332
    , which is the object offense identified in the
    superseding indictment. R. 186 (Superseding Indictment ¶ 46, at 10).5 The statute also
    makes it a crime to attempt or to conspire to take any of the stated actions. 18 U.S.C.
    § 2339A(a).
    Section 2339A broadly defines “material support or resources” to include
    tangible items, such as money or weapons, intangible items, such as training or advice,
    and human personnel, which encompasses both the recruitment of others and a
    defendant’s own partnership with those seeking to carry out the substantive offense.6
    The statute is, however, subject to a specific-intent requirement. The evidence therefore
    5
    
    18 U.S.C. § 2332
     establishes criminal penalties for attempting or conspiring to kill or killing a
    U.S. national abroad and for engaging in physical violence against such individuals with intent to cause
    serious bodily injury.
    6
    Specifically, the statute defines “‘material support or resources’” as
    any property, tangible or intangible, or service, including currency or monetary
    instruments or financial securities, financial services, lodging, training, expert advice
    or assistance, safehouses, false documentation or identification, communications
    equipment, facilities, weapons, lethal substances, explosives, personnel (1 or more
    individuals who may be or include oneself), and transportation, except medicine or
    religious materials.
    
    Id.
     § 2339A(b)(1). Notably, the term “personnel” has been read fairly generously. As one court observed,
    “[g]iven the ordinary meaning of the word ‘personnel,’ and its context within the statute, the statute
    prohibits the provision of persons who will be used in preparing for, or carrying out, the crimes listed in
    § 2339A—that is, persons who are jointly involved in participating in those crimes.” United States v.
    Sattar, 
    314 F. Supp. 2d 279
    , 298 (S.D.N.Y. 2004), aff’d sub nom. United States v. Stewart, 
    590 F.3d 98
    (2d Cir. 2009). Thus, for example, transmitting a fatwa from an incarcerated well-known terrorist leader,
    which the defendants knew would lead directly to the termination of a cease-fire, in effect constituted a
    “call to arms” that supported the defendants’ convictions for providing material support in the form of
    personnel. Stewart, 590 F.3d at 114–16.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 52
    must also establish that the defendants provided or conspired to provide the support or
    resources as defined in § 2339A(b)(1) “with the knowledge or intent that such resources
    be used to commit specific violent crimes.” United States v. Stewart, 
    590 F.3d 93
    , 113
    (2d Cir. 2009); see also Chesney, supra at 485–86. But even so limited, § 2339A covers
    a broad range of both individual and conspiratorial conduct.
    A recent case involving § 2339A is United States v. Khan, 
    461 F.3d 477
     (4th Cir.
    2006), which, not unlike this case, involved a group that engaged in intensive simulated
    combat exercises using paintball guns, as well as firearms training and marksmanship.
    
    Id. at 483
    . The group was comprised of members of an Islamic center, some of whom
    discussed a desire to go to Pakistan to train with a militant group known as LET and
    ultimately to go to Afghanistan to fight with the Taliban against the United States. 
    Id. at 484
    . Others sought to join the fight against India in Kashmir. 
    Id.
     In addition, a
    handful of these members—including some of the defendants—actually traveled to LET
    camps in Pakistan and participated in training in that location. 
    Id. at 485
    . One of these
    defendants challenged a conspiracy conviction under 18 U.S.C. § 2339A, contending
    that there was insufficient evidence that he intended that equipment provided to an LET
    contact would be used in furtherance of a conspiracy to kill or injure persons in a foreign
    country. Id. at 488. But because that defendant was engaged directly with LET and
    because he knew that LET’s goals included the destruction of India, the United States,
    and Israel, the Fourth Circuit upheld the conviction. Id. The court reached a similar
    result with respect to a different defendant who trained others in military techniques with
    the knowledge that those individuals planned to use the techniques upon joining a violent
    organization abroad, concluding that this too was sufficient to support § 2339A
    conviction. Id. at 490; see also United States v. Mustafa, 406 F. App’x 526 (2d Cir.
    2011) (unpublished opinion) (providing specific training on methods for conducting
    violent jihad sufficient to support conviction under § 2339A).
    As with Count 1, the parties’ arguments concerning Count 2 generally focus on
    the absence of an agreement among the defendants as to the nature of the conspiracy.
    Regarding Count 2, the superseding indictment charges that the defendants conspired to
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                  USA v. Amawi, et al.            Page 53
    provide “money, training, explosives, communications equipment, computers or
    personnel, including the defendants, themselves.” R. 186 (Superseding Indictment ¶ 48).
    As overt acts, the superseding indictment identifies the debate on February 16, 2005,
    among all three defendants concerning whether the Iraqi insurgency most needed money,
    weapons, or manpower, but focuses much more on Amawi’s individual efforts to obtain
    astrolite for the Syrian individual and on Amawi’s alleged attempt, along with Griffin,
    to provide laptops to members of the mujahideen while in Jordan.
    Given the breadth of the statutory language under § 2339A, the evidence
    provides sufficient support for the convictions on Count 2. The reason for this is
    twofold. First, as discussed above, it is clear that the defendants agreed on the need to
    obtain training, and each did so at least in part based on a stated intent to join an
    insurgency abroad. The recorded conversations between the various defendants further
    indicate that they had full knowledge of the fact that, once abroad, either they themselves
    or others in the training group would be the material support—i.e., as personnel—to the
    mujahideen or others who they knew were preparing for or carrying out murder,
    attempted murder, or the causing of serious bodily injury to a U.S. national. Under the
    statute, it does not matter whether the individual defendants intended to carry out such
    acts themselves. See Jayyousi, 
    657 F.3d at
    1105–06 (noting that the government did not
    have to prove the defendants’ individual involvement in the object conspiracy, and
    instead needed to show only that the defendants knew they were supporting mujahideen
    who were engaged in such acts); see also 18 U.S.C. § 2339A(a); 
    18 U.S.C. § 2332.7
    Furthermore, as discussed above, each of the defendants sought on at least one instance
    to bring “trusted recruits” into the training group.
    Second, the record also provides some support for the government’s theory that
    the defendants additionally sought to send money or supplies to support the insurgency,
    though the February 16 meeting did not establish a specific plan to go about providing
    7
    Notably, none of the defendants appears to have raised any challenge to the sufficiency of the
    evidence with respect to their intent to support the underlying object conspiracy or any type of vagueness
    challenge to the attenuated nature of their charges under § 2339A. Instead, they focus only on the absence
    of any conspiratorial agreement. Because these other arguments have not been raised, I express no opinion
    about them here.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 54
    those resources. Mazloum, for example, asked whether it was possible to funnel money
    to Iraq and offered to provide Griffin with money if Griffin could obtain appropriate
    supplies to send over. Amawi, whose actions comprise most of the overt acts cited in
    the superseding indictment, sought to obtain astrolite and created a plan with Griffin that
    was purportedly intended to deliver laptops to the mujahideen. Thus, a reasonable juror
    could conclude that the February 16 meeting established an agreement to provide
    resources that were needed to help the insurgency, including money, supplies, and
    trained personnel.
    The government’s heavy reliance on Amawi’s actions to support this conspiracy
    count is troubling. Although Amawi was clearly attempting to obtain supplies for the
    Syrian individual, El-Hindi and Mazloum appear to have been completely uninvolved
    in these activities. Nevertheless, it is well established that each coconspirator need not
    be involved in every aspect of a conspiracy, so long as each “is a party to the general
    conspiratorial agreement.” Gibbs, 
    182 F.3d at 421
     (internal quotation marks omitted).
    Furthermore, once the agreement is in place, the coconspirators are liable for the acts of
    their coconspirators when such acts are in furtherance of the overall objective. Salinas,
    
    522 U.S. at
    63–64 (citing Pinkerton v. United States, 
    328 U.S. 640
    , 646 (1946)). Thus,
    as long as the evidence is sufficient to support a conspiracy in violation of § 2339A,
    Amawi’s actions are admissible as part of the overall conspiracy.
    As with the § 956 count, the evidence supporting the conspiracy under § 2339A
    is scattershot and disconcertingly attenuated from a realizable objective. Nevertheless,
    because I do not believe that the evidence was so sparse as to meet the demanding
    standard for overturning a jury verdict, the defendants’ convictions on Count 2 must also
    be affirmed.
    B. Distribution of Materials Regarding Explosives
    The final sufficiency challenge relates to Amawi’s convictions on two counts of
    violating 
    18 U.S.C. § 842
    (p)(2)(A), which makes it unlawful
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                   USA v. Amawi, et al.             Page 55
    to teach or demonstrate the making or use of an explosive, a destructive
    device, or a weapon of mass destruction, or to distribute by any means
    information pertaining to, in whole or in part, the manufacture or use of
    an explosive, destructive device, or weapon of mass destruction, with the
    intent that the teaching, demonstration, or information be used for, or in
    furtherance of, an activity that constitutes a Federal crime of violence.
    The superseding indictment identifies the predicate crime-of-violence offenses8 for both
    counts as 
    18 U.S.C. § 2332
    (a), which criminalizes the killing of a U.S. national, and
    
    18 U.S.C. § 1114
    , which criminalizes the killing of any U.S. officer or employee,
    including members of the armed forces. Both counts involved only the distribution-of-
    information portion of the statute and did not allege that Amawi had violated 
    18 U.S.C. § 842
    (p)(2)(A) by “teach[ing] or demonstrat[ing] the making or use of an explosive.”
    1. Count 3: The Bomb-Vest Video
    With respect to Count 3, the superseding indictment alleged that Amawi
    “accessed a secure mujahideen web site and opened, viewed, and discussed with
    [Griffin] certain instructional materials and videos, including a video entitled
    ‘Martyrdom Operation Vest Preparation,’ which depicted the step-by-step construction
    and use of a suicide bomb vest.” R. 186 (Superseding Indictment ¶ 60, at 13). The
    indictment further asserted that Amawi “displayed and translated [the video for Griffin],
    with the intent that [Griffin] use said instructional materials for training individuals in
    the construction and use of such bomb vests to commit and further a Federal crime of
    violence.” 
    Id.
     The facts supporting the charge are as follows.
    On January 10, 2005, Amawi and Griffin together watched a number of videos,
    including the bomb-vest video. At trial, Griffin indicated that they were viewing the
    videos with the purpose of compiling training materials. As they viewed the bomb-vest
    video, Amawi translated parts of it, and, during other points, Griffin added explanation
    8
    The “crime of violence” language in this statute engages the standard crime-of-violence language
    employed under 
    18 U.S.C. § 16
    . See Leocal v. Ashcroft, 
    543 U.S. 1
    , 7 n.4 (2004) (“[A] number of statutes
    criminalize conduct that has as an element the commission of a crime of violence under § 16. See, e.g.,
    
    18 U.S.C. § 842
    (p) (prohibiting the distribution of information relating to explosives, destructive devices,
    and weapons of mass destruction in relation to a crime of violence).”); see also United States v. Hull,
    
    456 F.3d 133
    , 138 (3d Cir. 2006), cert. denied, 
    550 U.S. 970
     (2007). The subsection is relatively new, and
    courts across the country therefore have had few opportunities to address it. See Hull, 
    456 F.3d at 138
    .
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                USA v. Amawi, et al.          Page 56
    about using those types of explosives. Griffin also requested a copy of the bomb-vest
    video, and asked that Amawi put together CDs with training materials to facilitate tactics
    and bomb-making instruction. Griffin made this request on multiple occasions, and
    Amawi continually agreed to provide a copy of the video. Nevertheless, the CDs that
    Amawi provided never contained a usable copy of the file.9 This was despite Griffin’s
    observation that, given Amawi’s technical knowledge, transferring the video to Griffin
    would not have been difficult for Amawi.
    According to the government, even absent a successful transfer, the above facts
    establish that Amawi intended to distribute the information to Griffin so that Griffin
    could either make a bomb himself or teach others to do so. Amawi, on the other hand,
    argues that he did not distribute anything and that the failure to transfer is significant
    evidence that he also lacked the requisite intent, particularly given Amawi’s
    demonstrated acumen in technology. The government responds by pointing out that
    translation alone is enough to constitute distribution and that Amawi expressly stated a
    purpose of compiling training materials. The government also asserts that the repeated
    attempts to transfer the materials, though unsuccessful, nonetheless demonstrate intent.
    The first question to be addressed is whether Amawi’s actions in sharing and
    translating the video suffice to establish distribution. Title 
    18 U.S.C. § 841
    (n) states that
    “distribute,” for purposes of the chapter that includes 
    18 U.S.C. § 842
    , “means sell,
    issue, give, transfer, or otherwise dispose of.” Title 
    18 U.S.C. § 842
    (p)(2)(A), however,
    broadly prohibits the distribution “by any means” of “information pertaining to, in
    whole or in part, the manufacture or use of an explosive.” Thus, by its plain language,
    however, the phrase “by any means” in the applicable subsection facially supports the
    government’s assertion that the statutory definition of distribution includes merely
    9
    Griffin did not actually obtain a usable copy of the bomb-vest video until El-Hindi provided
    website information that enabled Griffin to download it himself.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                    USA v. Amawi, et al.             Page 57
    sharing and translating the information at issue, despite the arguably narrower language
    in § 841(n).10
    Although Amawi presents a colorable argument showing lack of intent, it is not
    enough, in order to overturn a jury verdict, simply to offer an alternative explanation of
    the evidence. Barnett, 
    398 F.3d at 522
     (“Circumstantial evidence alone is sufficient to
    sustain a conviction and such evidence need not remove every reasonable hypothesis
    except that of guilt.” (internal quotation marks omitted)). The question instead is
    whether “any rational trier of fact could have found the essential elements of the crime
    beyond a reasonable doubt.” Sliwo, 
    620 F.3d at 633
     (internal quotation marks omitted).
    Here, Amawi was well aware that Griffin sought to compile training materials, and
    Amawi agreed to help Griffin do so. Although the issue is close, a reasonable juror
    could conclude that this endeavor was intended to facilitate the killing or injuring of U.S.
    nationals abroad.
    2. Count 4: The Arabic Explosives Manual
    Count 4 of Amawi’s indictment arose from Amawi’s distribution to Griffin of a
    CD that contained a six-page Arabic document that described the process for
    manufacturing an explosive device. Amawi asserts that there is no evidence that he
    intended for Griffin to use the document for any violent purpose. In particular, Amawi
    maintains that, in light of the large amount of superfluous information on the CDs,
    including personal information and a number of videos that would have been of no value
    to any training operation, a single document relating to explosives cannot evidence an
    intent to carry out violent acts using the document’s instructions. In response, the
    10
    The district court reached a similar conclusion in its order denying Amawi’s motion to dismiss
    the charges under Count 3. Specifically, the district court concluded that
    [g]iving of information “by any means” about making an explosive can occur as
    effectively from having someone watch a video as by having him read a manual or
    reciting for him the steps orally. The statute contains no requirement that the person
    receiving the information also get an electronic or paper copy. What matters is giving
    the proscribed information to someone else. That’s what the indictment charges the
    defendant did.
    R. 655 (Dist. Ct. Order at 6). In a subsequent order denying Amawi’s motion for a judgment of acquittal,
    the district court similarly concluded (1) that “[s]howing the video sufficed to establish distribution”; and
    (2) that “[t]he jury could reasonably conclude beyond a reasonable doubt that Amawi showed the video
    to Griffin intending that Griffin, the former Special Forces soldier, would use the information from the
    video either to make similar bombs or teach others how to do so.” R. 948 (Dist. Ct. Order at 5–6).
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 58
    government argues that the purpose of all the materials was to create a training library
    and that the jury easily could have concluded that Amawi intended eventually to
    translate the material to permit Griffin to use it for training purposes.
    Because this material was actually distributed to Griffin on a disk, the first
    element of Count 4 is easily met. Thus, the question again comes down to intent. On
    that point, the district court concluded that because Amawi sought to be trained on
    “jihadist tactics, . . . [t]he jury could reasonably conclude beyond a reasonable doubt that
    Amawi, himself fluent in Arabic, gave the explosives manual to Griffin in anticipation
    that Griffin would use the manual during his training of Amawi and the other
    defendants,” and that the manual “had been given to Griffin to enable him to make its
    information available to Amawi and others, and thereby facilitate their actions against
    Americans in Iraq.” R. 948 (Dist. Ct. Order at 7).
    Based on the record, the question of intent is a close one. Amawi transferred
    various materials to Griffin knowing that Griffin’s stated purpose was to use those
    materials to train others to commit violent jihad against U.S. forces overseas. On the
    other hand, the other materials that were on the same disk included a random assortment
    of videos and music, many of which contain no content that could be used to facilitate
    training. Moreover, the government does not appear to have produced evidence that
    Amawi necessarily even knew that the manual was on the transferred disk.
    Nevertheless, given that Amawi and Griffin had multiple discussions concerning
    gathering materials to provide training to the mujahideen or those seeking to join them,
    Amawi’s subsequent distribution of CDs containing materials relevant to that cause is
    enough for a rational fact finder to infer his intent to use the materials for that purpose.
    II. THE DISTRICT COURT’S EXCLUSION OF DEFENSE
    WITNESSES ALTERMAN AND ASLAN
    In addition to challenging the sufficiency of the evidence supporting their
    convictions, the defendants also alleged a number of evidentiary errors relating to the
    admission or exclusion of certain witnesses. Although I believe that the majority is
    correct in affirming the district court’s decision to admit part of Evan Kohlmann’s
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079          USA v. Amawi, et al.        Page 59
    testimony, I find troubling the district court’s corresponding refusal to permit at least
    some of the proposed testimony by defense witnesses Jon Alterman and Reza Aslan.
    Nevertheless, because I do not believe that any resulting error was reversible, I join the
    majority in affirming the district court’s judgment.
    The defendants contend that the proffered testimony from Alterman and Aslan
    would have provided the jury with the knowledge necessary to “consider innocent
    explanations for Appellants’ behavior and statements.” Mazloum Br. at 28. Much of
    this came in the way of background. Alterman, who was the Director and Senior Fellow
    for the Center for Strategic and International Studies, proposed to testify about typical
    Middle Eastern views of the United States, as well as the proliferation of religious and
    political materials in the early 2000s.        Specifically, he sought to elucidate the
    mainstream, non-radical use of certain Arabic terms, such as ahki and Inshallah.
    Alterman also would have informed jurors that, although mainstream opinion in Jordan
    considered the U.S. actions in Iraq to be acts of terrorism, very little material support for
    the insurgency actually came out of Jordan. Finally, Alterman would have covered
    certain media developments, including the rise in internet use in the Middle East and the
    spread of internet videos as a source for those seeking to know more about the
    developments in Iraq than what was covered in American news media.
    Aslan, a religious scholar, fellow at the University of Southern California’s
    Center on Public Diplomacy, and CBS news analyst, also sought to provide what, to a
    large extent, could be classified as background information, though his testimony would
    have related to the Islamic faith, the meaning of the term “jihad,” and the rise of jihad
    as a global social movement. In addition, Aslan would have presented the “Social
    Movement Theory,” which “holds that 99.9% of those purporting to imitate a radical
    stance are really ‘free riders’ . . . who talk[] the talk, but never walk[] the walk.”
    Mazloum Br. at 36–37; see also R. 920-8 (Aslan Proffer at 5–6).
    In excluding the two witnesses’ testimony, the district court concluded that much
    of it was “ancillary to the issues in the case” and therefore likely to confuse the jury.
    R. 754 (Dist. Ct. Op. at 9); see also id. at 7. Although the district court recognized that
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.        Page 60
    some of the proposed testimony was of limited probative value in establishing the
    defendants’ states of mind, it found that the tenuous nexus between the defendants and
    the more generalized observations about Middle Eastern beliefs and attitudes rendered
    speculative any insights that could be derived. See, e.g., id. at 9 (concluding that
    whether the overwhelming majority of Jordanians who viewed such material failed to
    act was irrelevant because it “says nothing about whether Amawi himself would have
    gone, or wanted to go, as the government alleges, to Iraq”). Instead, the district court
    emphasized the need to focus on what the “defendants did and wanted to do, rather than
    what others, with whom the defendants had no affiliation, have done, continue to do and
    want to do.” Id. at 4.
    Federal Rule of Evidence 702 broadly permits testimony by qualified expert
    witnesses if such “scientific, technical, or other specialized knowledge will help the trier
    of fact to understand the evidence or to determine a fact in issue.” Fed. R. Evid. 702(a).
    But because we review a district court’s exclusion of evidence only for abuse of
    discretion, we will reverse its decision “only if we are firmly convinced of a mistake that
    affects substantial rights and amounts to more than harmless error.” United States v.
    Baldwin, 
    418 F.3d 575
    , 579 (6th Cir. 2005) (internal quotation marks omitted); see also
    Pressman v. Franklin Nat’l Bank, 
    384 F.3d 182
    , 187 (6th Cir. 2004). In other words, the
    defendants must show that the proffered but excluded testimony was “likely to have had
    [a] substantial effect on [the] conviction,” which in turn requires us to “consider the
    relation of the wrongfully admitted (or excluded) evidence to the critical question for the
    jury, the importance of the evidence, and the closeness of the case.” United States v.
    White, 
    492 F.3d 380
    , 404 (6th Cir. 2007).
    Contrary to the apparent majority position, I believe that Aslan and Alterman
    sought in part to address issues that are unfamiliar to the average juror and offered
    evidence that would have provided alternative explanations for the conduct about which
    Kohlmann testified. This information was relevant and should have been permitted.
    Admittedly, much of the proposed evidence was overly broad and may not have
    been particularly helpful to the jury. For example, the meaning of words like ahki and
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079        USA v. Amawi, et al.       Page 61
    Inshallah—which Alterman proposed to elucidate—is readily apparent from listening
    to the recordings that were already entered into evidence. Similarly, although the term
    “jihad” may have engendered some confusion that Aslan’s testimony could have cleared
    up, the parties had already stipulated to the meaning of the term, thereby providing the
    jury with appropriate guidance concerning the broader definition of the word, which is
    not limited to violent Islamic warfare. Other evidence, such as broad-based descriptions
    of the geographic and geo-political conditions and cultural attitudes in the Middle East,
    was also of limited relevance to the question of the defendants’ intent in this case. The
    district court thus did not abuse its discretion in determining that the rather generic
    testimony proffered on these subjects either would not have been helpful to the jury or
    would have risked confusing the issues. Cf. United States v. Verduzco, 
    373 F.3d 1022
    ,
    1034 (9th Cir. 2004) (holding that the district court did not err in excluding expert
    testimony that purported to establish the defendant’s mental state “solely by the
    application of generic cultural and ethnic stereotypes and data”).
    The district court’s decision to exclude other portions of Aslan and Alterman’s
    proposed testimony is more problematic given the unique circumstances of this case.
    Most troubling is the exclusion of testimony from both witnesses that would have
    explained the pervasive nature of the videos and websites admitted into evidence and the
    fact that such materials are commonly viewed by non-extremists in the Middle East.
    Such facts would likely be unknown to many Midwestern jurors, but they are relevant
    to those jurors’ conclusions regarding the appropriate inference to be drawn from the
    defendants’ frequent viewing of such materials. This is especially so in light of
    Kohlmann’s testimony, which the government offered as evidence of the defendants’
    intent to support and engage in terrorist activities based in part on the high level of
    dedication required to monitor and maintain access to these sites. See Gov’t Br. at 61
    (stating that Kohlmann’s testimony showed the “extraordinary lengths” to which Amawi
    and El-Hindi went to access certain websites and indicating that, “[p]articularly when
    considered in conjunction with [the defendants’] comments as they watched the videos,
    it demonstrated [the defendants’] intent to support the objectives and activities of such
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079                  USA v. Amawi, et al.            Page 62
    organizations”).11 And, as the majority concedes, Kohlmann’s testimony concerning
    these efforts was “quite probative to show [the defendants’] intent as part of the
    conspiracy.” Majority Op. at 25.
    It is true, as the majority points out, that none of the charges directly related to
    global terrorism, and, to the extent that the defense witnesses sought to enlighten the jury
    on wide-ranging principles of Islamic or fundamentalist theology or the state of the
    global jihadist movement, their testimony was not relevant to the factual issues in this
    case. Cf. United States v. Rahman, 
    189 F.3d 88
    , 134–35 (2d Cir. 1999) (concluding that
    generalized testimony about Islam and Islamic law was properly excluded as irrelevant
    to the question whether the defendant conspired to levy war or commit crimes of
    violence against the United States). But even though such charges were absent,
    Kohlmann’s testimony concerning the defendants’ access to Al Qaeda-sponsored
    websites and their dedication to collecting materials that depict deliberate acts of
    violence against a variety of targets nevertheless raised the specter of global terrorism,
    and the defendants were entitled to challenge the inference of nefarious intent that may
    have resulted from Kohlmann’s descriptions of the efforts required to obtain such
    materials. To some extent, both Aslan and Alterman could have presented that alternate
    perspective, thereby undermining the government’s suggestion that watching and
    commenting on the videos and websites necessarily evinced the defendants’ intent to
    engage in similar activities. Furthermore, I do not agree that such evidence, if properly
    limited, would have risked confusing the jury to such an extent as to outweigh
    substantially its probative value. Accordingly, I believe that the district court erred
    insofar as it excluded defense testimony that could have shed light on the defendants’
    intent as evidenced by their monitoring and viewing of the websites and videos about
    which Kohlmann testified.
    11
    As a general matter, Kohlmann’s testimony was limited to providing additional context
    regarding items already in evidence, including how the websites operated, when certain information was
    available, and how and why the web addresses for obtaining certain videos changed over time. The district
    court sought to cabin any prejudicial effect from Kohlmann’s testimony by issuing a cautionary instruction
    reminding jurors that, in spite of Kohlmann’s references to Al-Qaeda and other terrorist groups running
    the websites from which the defendants obtained their information, no evidence actually linked any
    defendant to those organizations or supported an inference that the defendants had been in communication
    with anyone associated with such groups.
    Nos. 09-4339/4340/4341/4342/4344/4345; 11-4079         USA v. Amawi, et al.       Page 63
    The question then becomes whether the exclusion of this evidence substantially
    prejudiced the defense. In the defendants’ favor on this point is the closeness of the
    case, particularly given the government’s heavy reliance on the defendants’ repeated
    viewings of these materials in order to establish their intent to undertake similar action
    at some point in the future. It is also true, however, that the relatively small portion of
    the proffered testimony that would have shed light on the issue of intent—e.g., the
    proposed testimony concerning the number of viewers of these materials in the Middle
    East as compared to the actual number of individuals who take action on them—does not
    relate directly to whether the defendants themselves sought to kill or maim U.S. citizens
    abroad. Nor is it likely that the proposed experts’ broad cultural generalizations could
    have outweighed the highly inflammatory nature of the defendants’ statements while
    viewing various materials. Furthermore, the district court also appropriately recognized
    that some of the proposed testimony risked not only opening the door to more of
    Kolhmann’s testimony but also incorporating broader issues concerning global terrorism
    that were not relevant to the issues presented in this trial. Given these legitimate
    concerns and the relatively limited probative value of the testimony that the defendants
    sought to have admitted, I cannot conclude that the district court’s ultimate balancing of
    interests with respect to the admissibility of Alterman and Aslan’s testimony resulted in
    reversible error.