Liability of Contractors in Airbridge Denial Programs ( 2004 )


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  •         Liability of Contractors in Airbridge Denial Programs
    A contractor ordinarily will not be criminally liable for assisting in certain foreign government
    programs for the aerial interdiction of illegal narcotics traffic.
    March 1, 2004
    MEMORANDUM OPINION FOR THE DEPUTY LEGAL ADVISER
    DEPARTMENT OF STATE
    You have asked for our opinion about the circumstances in which a contractor
    may be criminally liable for assisting in certain foreign government programs for
    the aerial interdiction of illegal narcotics traffic.1 We believe that a contractor
    ordinarily will not be liable for providing such assistance.2
    I.
    In 1994, we advised the Deputy Attorney General on the lawfulness of certain
    forms of United States Government (“USG”) assistance to the Republics of
    Colombia and Peru. United States Assistance to Countries That Shoot Down Civil
    Aircraft Involved in Drug Trafficking, 
    18 Op. O.L.C. 148
     (1994) (“1994 Opin-
    ion”). The 1994 Opinion concluded that the Aircraft Sabotage Act of 1984, which
    makes it a crime “willfully [to] destroy[] a civil aircraft registered in a country
    other than the United States while such aircraft is in service or cause[] damage to
    such an aircraft which renders that aircraft incapable of flight or which is likely to
    endanger that aircraft’s safety in flight,” 
    18 U.S.C. § 32
    (b)(2) (1994), generally
    applies to government actors, including the police and military personnel of
    foreign governments. 1994 Opinion, 18 Op. O.L.C. at 153–55.3 Moreover, the
    criminal prohibition can apply even if no United States aircraft was involved and
    even if the act was not committed in this country. Id. at 152–53.
    The 1994 Opinion advised that there was a “substantial risk that USG personnel
    who furnish assistance to the aerial interdiction programs of those countries could
    1
    Letter for M. Edward Whelan III, Acting Assistant Attorney General, from Samuel Witten,
    Deputy Legal Adviser, Department of State (Aug. 4, 2003) (“State Department Letter”).
    2
    The Criminal Division concurs in this analysis.
    3
    The Opinion concluded, however, that section 32(b)(2) implicitly recognizes certain defenses that
    are presumed to be available as to criminal prohibitions generally. 18 Op. O.L.C. at 163. In particular,
    section 32(b)(2) does not “criminaliz[e] actions by military personnel that are lawful under internation-
    al law and the laws of armed conflict.” Id. at 164. The Opinion noted that application of section
    32(b)(2) to such cases “could readily lead to absurdities.” Id. In addition, “even in cases in which the
    laws of armed conflict are inapplicable,” section 32(b)(2) would not apply to actions taken by an officer
    who “reasonably believes that the aircraft poses a threat of serious physical harm” to the officer or
    another person where the threat is “direct and immediate” and “no reasonably safe alternative would
    dispel that threat.” 1994 Opinion, 18 Op. O.L.C. at 164–65; cf. United States v. Bailey, 
    444 U.S. 394
    ,
    409–10 (1980).
    13
    Opinions of the Office of Legal Counsel in Volume 28
    be aiding and abetting criminal violations of the Aircraft Sabotage Act.” 
    Id.
     at 149
    (citing 
    18 U.S.C. § 2
    (a)). The 1994 Opinion also cautioned that, absent certain
    preventive steps, “United States aid to Colombia and Peru might also implicate
    USG personnel in those governments’ shootdown policies on a conspiracy
    rationale.” 
    Id.
     at 160–61 (citing 
    18 U.S.C. § 371
     (1994)). To address these
    concerns, the 1994 Opinion recommended that the USG take certain steps. The
    risk that provision of aid to Colombia or Peru would fall within the criminal
    prohibition on aiding or abetting in 
    18 U.S.C. § 2
    (a) could be averted by obtaining
    a “reliable assurance . . . that the foreign government would carry out no
    shootdowns falling within the prohibition of § 32(b)(2).” Id. at 159. If the foreign
    government refused to give such an assurance, the USG would need to insist on a
    number of conditions designed to ensure that, in shooting down civil aircraft, the
    foreign government would use no assistance that had come from the USG. Id. at
    160. Furthermore, the USG could “make [its] disapproval of shootdowns in
    violation of section 32(b) clear in order to eliminate any suggestion that USG
    personnel have entered into a conspiratorial agreement with foreign officials
    involving unlawful shootdowns,” and “USG agencies should specifically instruct
    their personnel not to enter into any agreements or arrangements with the officials
    or agents of foreign governments that encourage or condone shootdowns.” Id. at
    161–62.
    In October 1994, in response to the Executive Branch’s articulation of the
    scope of section 32(b), as reflected in the 1994 Opinion, Congress enacted an
    express exception to any criminal culpability under federal law for certain law-
    enforcement shootdowns. National Defense Authorization Act for Fiscal Year
    1995, Pub. L. No. 103-337, § 1012, 
    108 Stat. 2663
    , 2837 (1994) (codified at 
    22 U.S.C. § 2291-4
     (1994)). This exception, as later amended, provides that employ-
    ees and agents of a foreign country engaged in interdictions, under specified
    circumstances, are not liable for shooting down civil aircraft:
    Notwithstanding any other provision of law, it shall not be unlawful
    for authorized employees or agents of a foreign country (including
    members of the armed forces of that country) to interdict or attempt
    to interdict an aircraft in that country’s territory or airspace if—
    (1) that aircraft is reasonably suspected to be primarily engaged in
    illicit drug trafficking; and
    (2) the President of the United States has, during the 12-month
    period ending on the date of the interdiction, certified to Congress
    with respect to that country that—
    (A) interdiction is necessary because of the extraordinary
    threat posed by illicit drug trafficking to the national security
    of that country; and
    14
    Liability of Contractors in Airbridge Denial Programs
    (B) the country has appropriate procedures in place to protect
    against innocent loss of life in the air and on the ground in
    connection with interdiction, which shall at a minimum in-
    clude effective means to identify and warn an aircraft before
    the use of force directed against the aircraft.
    
    22 U.S.C. § 2291-4
    (a) (2000 & Supp. II 2003).4 If the conditions specified as to
    foreign personnel are met, agents and employees of the United States are not liable
    for assisting the foreign personnel who shoot down the aircraft:
    Notwithstanding any other provision of law, it shall not be unlawful
    for authorized employees or agents of the United States (including
    members of the Armed Forces of the United States) to provide assis-
    tance for the interdiction actions of foreign countries authorized un-
    der subsection (a) of this section. The provision of such assistance
    shall not give rise to any civil action seeking money damages or any
    other form of relief against the United States or its employees or
    agents (including members of the Armed Forces of the United
    States).
    
    Id.
     § 2291-4(b) (2000). Accordingly, when an aircraft is “reasonably suspected to
    be primarily engaged in illicit drug trafficking” and the President of the United
    States has determined prior to the interdiction that, with respect to a country,
    interdiction is “necessary because of the extraordinary threat posed by illicit drug
    trafficking to the national security of that country,” and that the country “has
    appropriate procedures in place to protect against innocent loss of life,” id. § 2291-
    4(a)(1)–(2), the employees and agents of the foreign government and the USG
    employees and agents who assist them are guilty of no crime as a result of
    interdicting the aircraft in that foreign country’s territory or airspace.
    In December 1994, the President made the requisite findings with regard to the
    Republics of Colombia and Peru, Presidential Determination No. 95-7, 3 C.F.R.
    1046 (1995) (Colombia); Presidential Determination No. 95-9, 3 C.F.R. 1047
    (1995) (Peru). However, after the Government of Peru in April 2001 accidentally
    shot down a plane carrying missionaries, the USG suspended its assistance to both
    countries. The program for Colombia has now been resumed, and programs for
    other countries could conceivably follow. You have asked us to examine the
    possible liability of contractors, engaged by the USG or the foreign government,
    who offer assistance in the conduct of an “airbridge denial program” meeting the
    standards of the exception in section 2291-4.
    4
    The term “interdict” means “to damage, render inoperative, or destroy the aircraft.” 
    22 U.S.C. § 2291-4
    (d)(1) (Supp. II 2003).
    15
    Opinions of the Office of Legal Counsel in Volume 28
    II.
    We begin with what should be the exceptional case: where the foreign govern-
    ment is conducting an airbridge denial program that the President has certified
    under 
    22 U.S.C. § 2291-4
    , but an employee or agent of the foreign government
    nonetheless shoots down a plane in violation of 
    18 U.S.C. § 32
    (b). For example, if
    a foreign government pilot willfully shoots down an aircraft that is not reasonably
    suspected of being primarily engaged in illegal drug trafficking, the question to be
    decided is whether a contractor who has given assistance for the interdiction (for
    example, by supplying and maintaining the radar used in the interdiction) could be
    liable as aiding and abetting the crime or conspiring to commit it. We start with
    the exceptional case because it allows us to set out the principles that govern the
    liability of accessories to crimes. With that background, we then will turn to the
    usual case, in which a civil aircraft is shot down but the interdiction is lawful
    because of the exception in 
    22 U.S.C. § 2291-4
    .
    A.
    In 1909, Congress enacted a general aiding and abetting statute, which has
    since been amended and codified as 
    18 U.S.C. § 2
    (a) (2000) and now provides:
    “Whoever commits an offense against the United States or aids, abets, counsels,
    commands, induces or procures its commission is punishable as a principal.”
    Section 2(a) does not create an independent substantive offense, but instead
    provides that accessories are to be treated and punished as though they were
    principals. In other words, it eliminates the common-law distinction between
    principals in the first degree, principals in the second degree, and accessories
    before the fact. See Standefer v. United States, 
    447 U.S. 10
    , 19 (1980); United
    States v. Superior Growers Supply, Inc., 
    982 F.2d 173
    , 177–78 (6th Cir. 1992).5 As
    the Supreme Court has noted, section 2(a) declares that “those who provide
    knowing aid to persons committing federal crimes, with the intent to facilitate the
    crime, are themselves committing the crime.” Cent. Bank of Denver v. First
    Interstate Bank of Denver, 
    511 U.S. 164
    , 181 (1994) (citing Nye & Nissen v.
    United States, 
    336 U.S. 613
    , 619 (1949)). As this formulation suggests, and as the
    plain terms of section 2(a) require, an accessory is culpable under section 2(a) only
    if the government proves that the underlying offense was, in fact, committed
    (although the government need not prove the actual identity of the principal).6
    5
    Under 
    18 U.S.C. § 3
     (2000), accessories after the fact are guilty of a separate offense and suffer
    lesser punishment.
    6
    See, e.g., United States v. Branch, 
    91 F.3d 699
    , 732 (5th Cir. 1996); United States v. Hill, 
    55 F.3d 1197
    , 1204–05 (6th Cir. 1995); Superior Growers, 982 F.2d at 178; United States v. Horton, 
    921 F.2d 540
    , 543–44 (4th Cir. 1990); United States v. Campa, 
    679 F.2d 1006
    , 1013 (1st Cir. 1982).
    16
    Liability of Contractors in Airbridge Denial Programs
    The critical question for present purposes is the type of scienter that section 2(a)
    requires for accessory culpability. “In order to aid and abet another to commit a
    crime it is necessary that a defendant ‘in some sort associate himself with the
    venture, that he participate in it as in something that he wishes to bring about, that he
    seek by his action to make it succeed.’” Nye & Nissen, 
    336 U.S. at 619
     (quoting
    United States v. Peoni, 
    100 F.2d 401
    , 402 (2d Cir. 1938)); see also 1994 Opinion, 18
    Op. O.L.C. at 156.7 The accessory must provide the assistance with the specific
    intent of aiding the commission of the offense. Because, as we said in 1994, “[t]he
    contours of this element in the definition of aiding and abetting are not without
    ambiguity,” id. at 157, and because the Department has addressed the issue of aider
    and abettor culpability in its Report on the Availability of Bombmaking Information,
    the Extent to Which Its Dissemination is Controlled By Federal Law, and the Extent
    to Which Such Dissemination May Be Subject to Regulation Consistent With the
    First Amendment to the United States Constitution, Submitted to the United States
    House of Representatives and the United States Senate at 20–21 (April 29, 1997)
    (“Bombmaking Information Report”), available at http://cryptome.org/abi.htm (last
    visited June 6, 2013), we believe that further elaboration upon the discussion we
    offered in the 1994 Opinion is appropriate.
    In its discussion of culpability under section 2(a) in connection with the provi-
    sion of bombmaking information, the Department’s Bombmaking Information
    Report explained:
    [T]he aider must not only know that her assistance will be in the ser-
    vice of a crime; she also must share in the criminal intent. The de-
    fendant must “‘participate in [the venture] as in something that he
    wishes to bring about, that he seek by his action to make it suc-
    ceed.’” Nye & Nissen, 
    336 U.S. at 619
     (quoting United States v. Pe-
    oni, 
    100 F.2d 401
    , 402 (2d Cir. 1938)). As Judge Hand explained in
    the seminal Peoni case, the intent standard for criminal aiding and
    abetting is not the same as the “natural consequences of one’s act”
    test that is the touchstone for “intent” in the civil tort context; crimi-
    nal intent to aid the crime has “nothing whatever to do with the
    probability that the forbidden result [will] follow upon the accesso-
    ry’s conduct.” Peoni, 
    100 F.2d at 402
    . Rather, the aider must have a
    “purposive attitude” toward the commission of the offense. 
    Id.
    7
    The question of an accessory’s scienter may be somewhat different where the underlying offense
    does not require purposive conduct, such as where the necessary state of mind for commission of the
    underlying offense is recklessness or negligence, or where the statute imposes strict liability. See 2
    Wayne R. LaFave & Austin W. Scott, Jr., Substantive Criminal Law § 6.7(e), at 149–52 (1986); see
    generally Audrey Rogers, Accomplice Liability for Unintentional Crimes: Remaining Within the
    Constraints of Intent, 
    31 Loy. L.A. L. Rev. 1351
     (1998). Because section 32(b)(2) is not such an
    offense, we need not here consider such questions.
    17
    Opinions of the Office of Legal Counsel in Volume 28
    Bombmaking Information Report at 19 (footnote omitted). The report accordingly
    concluded that section 2(a) “generally would not prohibit or punish the dissemina-
    tion of bombmaking information in the case where the disseminator does not have
    the specific purpose of facilitating a crime but nevertheless knows that a particular
    recipient thereof intends to use it for unlawful ends.” Id. at 26. The following con-
    clusions regarding the scienter element of aiding and abetting liability are consist-
    ent with the Bombmaking Information Report:
    (i) the scienter element requires that the aider actually “seek by his
    action to make [the crime] succeed,” id. at 19;
    (ii) while the aider’s knowledge (or suspicion) that aid will be (or is
    likely to be) used to commit crimes may be relevant to the eviden-
    tiary question of whether the actor purposively assisted the crime,
    such knowledge is not dispositive of the question of shared purpose,
    id.; and
    (iii) it should not, for purposes of section 2(a), automatically be pre-
    sumed that an aider “intends” the “natural consequences” of his acts,
    id.
    As the Department explained in the Bombmaking Information Report, before
    the Court’s decision in Nye & Nissen there had been a growing debate in the lower
    courts on whether section 2(a) required purposive assistance, particularly in the
    case where a person knows, or strongly suspects, that aid he or she provides in the
    ordinary course of conduct or business will be used to commit a criminal offense.8
    It was the view of Judge Learned Hand that “purposive attitude” was essential, and
    that aiding and abetting under section 2(a) has “nothing whatsoever to do with the
    probability that the forbidden result would follow upon the accessory’s conduct.”
    Peoni, 
    100 F.2d at 402
    ; accord 
    id.
     (arguing that the “natural consequence of
    [one’s] . . . act” principle, although germane to a civil case, is not the rule of
    criminal aiding and abetting culpability). As Judge Hand elaborated in United
    States v. Falcone, 
    109 F.2d 579
    , 581 (2d Cir.), aff’d, 
    311 U.S. 205
     (1940):
    8
    As the Model Penal Code notes, “there are many and important cases” in this category, for exam-
    ple:
    A lessor rents with knowledge that the premises will be used to establish a bordello. A
    vendor sells with knowledge that the subject of the sale will be used in the commis-
    sion of a crime. A doctor counsels against an abortion during the third trimester but, at
    the patient’s insistence, refers her to a competent abortionist. A utility provides tele-
    phone or telegraph service, knowing it is used for bookmaking. An employee puts
    through a shipment in the course of his employment though he knows the shipment is
    illegal. A farm boy clears the ground for setting up a still, knowing that the venture is
    illicit.
    Model Penal Code § 2.06 cmt. 6(c), at 316 (Official Draft & Revised Comments 1985).
    18
    Liability of Contractors in Airbridge Denial Programs
    In [Peoni] we tried to trace down the doctrine as to abetting and con-
    spiracy, as it exists in our criminal law, and concluded that the sell-
    er’s knowledge was not alone enough. Civilly, a man’s liability ex-
    tends to any injuries which he should have apprehended to be likely
    to follow from his acts. If they do, he must excuse his conduct by
    showing that the interest which he was promoting outweighed the
    dangers which its protection imposed upon others; but in civil cases
    there has been a loss, and the only question is whether the law shall
    transfer it from the sufferer to another. There are indeed instances of
    criminal liability of the same kind, where the law imposes punish-
    ment merely because the accused did not forbear to do that from
    which the wrong was likely to follow; but in prosecutions for con-
    spiracy or abetting, his attitude towards the forbidden undertaking
    must be more positive. It is not enough that he does not forego a
    normally lawful activity, of the fruits of which he knows that others
    will make an unlawful use; he must in some sense promote their ven-
    ture himself, make it his own, have a stake in its outcome.
    That view was challenged, most prominently by Judge John J. Parker in Backun
    v. United States, 
    112 F.2d 635
     (4th Cir. 1940). In dicta in that case, Judge Parker
    wrote:
    Guilt as an accessory depends, not on “having a stake” in the out-
    come of crime. . . . The seller may not ignore the purpose for which
    the purchase is made if he is advised of that purpose, or wash his
    hands of the aid that he has given the perpetrator of a felony by the
    plea that he has merely made a sale of merchandise. One who sells a
    gun to another knowing that he is buying it to commit a murder,
    would hardly escape conviction as an accessory to the murder by
    showing that he received full price for the gun.
    
    Id. at 637
    .
    In Nye & Nissen, the Court, quoting Peoni, 
    100 F.2d at 402
    , held that “[i]n
    order to aid and abet another to commit a crime it is necessary that a defendant ‘in
    some sort associate himself with the venture, that he participate in it as in some-
    thing that he wishes to bring about, that he seek by his action to make it succeed.’”
    
    336 U.S. at 619
     (emphasis added). More recently, in Central Bank of Denver v.
    First Interstate Bank, 
    511 U.S. 164
     (1994), the Court reaffirmed Nye & Nissen. In
    Central Bank, the government argued that section 2(a) was pertinent authority for
    applying a “recklessness” standard for civil aiding and abetting liability under
    section 10(b) of the Securities and Exchange Act, 15 U.S.C. § 78j(b) (1994). The
    Court rejected that argument, in part on the ground that the government’s reliance
    on section 2(a) was “inconsistent” with its argument that a recklessness standard
    should govern:
    19
    Opinions of the Office of Legal Counsel in Volume 28
    Criminal aiding and abetting liability under § 2(a) requires proof that
    the defendant “in some sort associate[d] himself with the venture,
    that he participate[d] in it as in something that he wishe[d] to bring
    about, that he [sought] by his action to make it succeed.” Nye & Nis-
    sen, 
    336 U.S., at 619
     (internal quotation marks omitted). But reck-
    lessness, not intentional wrongdoing, is the theory underlying the
    aiding and abetting allegations in the case before us.
    
    511 U.S. at 190
    .9
    With respect to culpability for aiding and abetting under section 2(a), then, the
    general question under the Peoni test is whether an individual “[sought] by his
    action to make [the crime] succeed,” Nye & Nissen, 
    336 U.S. at 619
     (internal
    quotation marks and citation omitted), i.e., whether the individual “knowingly did
    some act for the purpose of [aiding] . . . the commission of that crime,” and
    whether the defendant “acted with the intention of causing the crime charged to be
    committed.” 1 Edward J. Devitt et al., Federal Jury Practice & Instructions
    § 18.01, at 693 (4th ed. 1992) (brackets in original).
    A portion of our 1994 Opinion states a rule that appears to go beyond the scien-
    ter requirement of section 2(a) as analyzed above. The 1994 Opinion suggests that
    “USG agencies and personnel may not provide information (whether ‘real-time’ or
    other) or other USG assistance (including training and equipment) to Colombia or
    Peru in circumstances in which there is a reasonably foreseeable possibility that
    9
    Moreover, the Court’s use of the Peoni standard in Nye & Nissen has led the courts of appeals to
    adopt that standard. See, e.g., United States v. Teffera, 
    985 F.2d 1082
    , 1086 (D.C. Cir. 1993); United
    States v. de la Cruz-Paulino, 
    61 F.3d 986
    , 998 (1st Cir. 1995); United States v. Campa, 
    679 F.2d 1006
    ,
    1010 (1st Cir. 1982); United States v. Best, 
    219 F.3d 192
    , 199–200 (2d Cir. 2000); United States v.
    Jenkins, 
    90 F.3d 814
    , 821 (3d Cir. 1996); United States v. Bey, 
    736 F.2d 891
    , 895 (3d Cir. 1984); Rice
    v. Paladin Enters., 
    128 F.3d 233
    , 251 (4th Cir. 1997) (dictum) (quoting Peoni, 
    100 F.2d at 402
    , and
    characterizing Nye & Nissen as “adopting Judge Hand’s view of the criminal intent requirement”);
    United States v. Horton, 
    921 F.2d 540
    , 543 (4th Cir. 1990); United States v. Richeson, 
    825 F.2d 17
    , 21
    (4th Cir. 1987); United States v. Branch, 
    91 F.3d 699
    , 730 (5th Cir. 1996); United States v. Jaramillo,
    
    42 F.3d 920
    , 923–24 (5th Cir. 1995); Rattigan v. United States, 
    151 F.3d 551
    , 557–58 (6th Cir. 1998);
    United States v. Hill, 
    55 F.3d 1197
    , 1201–02 (6th Cir. 1995); United States v. Sewell, 
    159 F.3d 275
    ,
    278 (7th Cir. 1998); United States v. Simpson, 
    979 F.2d 1282
    , 1288 (8th Cir. 1992); United States v.
    Carranza, 
    289 F.3d 634
    , 642 (9th Cir.), cert. denied, 
    537 U.S. 1037
     (2002); United States v. Vasquez-
    Chan, 
    978 F.2d 546
    , 552 (9th Cir. 1992); United States v. Sanchez-Mata, 
    925 F.2d 1166
    , 1169 (9th Cir.
    1991); United States v. McMahon, 
    562 F.2d 1192
    , 1195 (10th Cir. 1977); United States v. Howard, 
    13 F.3d 1500
    , 1502 (11th Cir. 1994); cf. Model Penal Code § 2.06(3)(a)(ii) & cmt. 6(c), at 296, 313–19
    (recommending the adoption of the equivalent of the Peoni standard in criminal codes). Some panel
    decisions of the Seventh Circuit analyze the scienter requirement of section 2(a) in a manner that could
    be construed to be in tension with one or more aspects of the Nye & Nissen/Peoni rationale, see United
    States v. Fountain, 
    768 F.2d 790
    , 797–98 (7th Cir. 1985); United States v. Zafiro, 
    945 F.2d 881
    , 887–
    88 (7th Cir. 1991), aff’d on other grounds, 
    506 U.S. 534
     (1993); United States v. Ortega, 
    44 F.3d 505
    ,
    508 (7th Cir. 1995); see also United States v. Irwin, 
    149 F.3d 565
    , 569–76 (7th Cir. 1998); but an en
    banc decision of the Seventh Circuit indicates that the Peoni rule is the governing law in that circuit as
    well. See United States v. Piño-Perez, 
    870 F.2d 1230
    , 1235 (7th Cir. 1989) (en banc) (“We and other
    courts have endorsed Judge Learned Hand’s definition of aiding and abetting . . . .”).
    20
    Liability of Contractors in Airbridge Denial Programs
    such information or assistance will be used in shooting down civil aircraft,
    including aircraft suspected of drug trafficking.” 18 Op. O.L.C. at 162. As far as
    section 2(a) is concerned, however, a person could be culpable as an aider and
    abettor only if he provided aid to a foreign nation with the purpose of helping an
    unlawful shootdown succeed.10
    Applying the test for aiding and abetting liability, we turn to the question
    whether a contractor could be liable when the government it has assisted engages
    in an unlawful shootdown. Under the applicable test, a contractor would aid and
    abet a violation of section 32(b)(2) only if he sought by his aid to make the
    unlawful interdiction succeed.11
    There is no definitive test for determining when circumstantial evidence would
    warrant an inference of the requisite scienter. The nature of the assistance and its
    relation to the underlying crime, as well as the gravity of the crime, may be
    pertinent in determining whether the aider sought to make the unlawful shootdown
    succeed. For example, if the crime is particularly grave, the assistance is essential
    (in the sense that without it the crime could not be committed and the principal
    could not readily obtain the assistance from another source), and the particular
    type of assistance cannot easily be (and is not typically) put to lawful use, it may
    be reasonable to infer that the facilitator harbored the necessary intent to satisfy
    10
    It is unclear whether the language in the 1994 Opinion regarding any “reasonably foreseeable
    possibility” of the unlawful use of the aid could be understood in light of the particular factual
    background presented there and the concomitant risk that the relevant facts might have been susceptible
    to an inference of purposive facilitation. See 18 Op. O.L.C. at 162. In particular, the 1994 Opinion
    observed that certain “USG personnel [had] been fully engaged in the air interdiction operations of
    each country, providing substantial assistance that . . . contributed in an essential, direct and immediate
    way” to the ability of the countries at issue “to shoot down civil aircraft.” Id. at 158. Under certain
    factual scenarios, a finder of fact might have been warranted in finding the requisite scienter for
    purposes of section 2(a). Moreover, we concluded in the 1994 Opinion that in the shootdown context,
    because the issue is an individual’s intent, aiding and abetting culpability could not definitively be
    negated simply by virtue of an official announcement that the USG was opposed to any violations of
    section 32(b)(2), and, in particular, that the USG was opposed to the use of USG aid in unlawful
    shootdowns. Id. at 157–58. To be sure, such clear statements, combined with unambiguous instructions
    to USG personnel never to provide aid for the purpose of facilitating unlawful shootdowns, would have
    helped to minimize the likelihood of a judicial finding of impermissibly motivated facilitation where
    aid provided by USG personnel did, in fact, assist a foreign nation in an unlawful shootdown. Cf. id. at
    161–62 (advice concerning mitigation of risk of prosecution for unlawful conspiracy). But in particular
    cases, circumstantial evidence might still have permitted an inference that particular USG personnel,
    contrary to announced government policy, had provided aid for the purpose of facilitating unlawful
    shootdowns. Occasionally, “aid rendered with guilty knowledge [that it will be used unlawfully]
    implies purpose since it has no other motivation.” Model Penal Code § 2.06 cmt. 6(c), at 316. We need
    not try to resolve such issues here.
    11
    We should stress, however, that this test does not depend upon the accessory’s ultimate motive. If
    the person sought by his actions to increase the likelihood that an unlawful shootdown succeed, it does
    not matter why he wished to facilitate the shootdown—for instance, because of a desire to retain
    amicable relations with the foreign country.
    21
    Opinions of the Office of Legal Counsel in Volume 28
    the Peoni standard.12 See Direct Sales Co. v. United States, 
    319 U.S. 703
    , 711
    (1943) (“While [intent to further the unlawful scheme] is not identical with mere
    knowledge that another purposes unlawful action, it is not unrelated to such
    knowledge.”).
    Particularly as to lawful uses of assistance, there is a critical difference between
    the circumstances of the 1994 Opinion and the circumstances in which a contrac-
    tor would act now. Now, under specified conditions, the foreign government can
    lawfully interdict civil aircraft reasonably suspected of being primarily engaged in
    illegal drug trafficking, whereas in 1994 it could not do so. The circumstances,
    therefore, do not naturally suggest the possibility that those providing assistance
    for the airbridge denial program share the purpose of conducting illegal interdic-
    tions. On the contrary, the more natural inference, absent particular facts indicating
    otherwise, is that the contractor intends the assistance to be used in accordance
    with the rules of the program that the President has certified under 
    22 U.S.C. § 2291-4
    . Given such an intent, the contractor would not be guilty of aiding and
    abetting under 
    18 U.S.C. § 2
    (a).
    B.
    The general conspiracy statute, 
    18 U.S.C. § 371
     (2000), provides a criminal
    penalty “[i]f two or more persons conspire . . . to commit any offense against the
    United States . . . and one or more of such persons do any act to effect the object
    of the conspiracy.” As the Supreme Court has explained, “agreement remains the
    essential element of the crime [of conspiracy under 
    18 U.S.C. § 371
    ], and serves to
    distinguish conspiracy from aiding and abetting which, although often based on
    agreement, does not require proof of that fact.” Iannelli v. United States, 
    420 U.S. 770
    , 777 n.10 (1975). In the 1994 Opinion, we considered whether a court
    “might . . . construe ongoing USG assistance [used to shoot down civil aircraft] as
    evidence of an agreement” that would amount to a conspiracy. 18 Op. O.L.C. at
    161. We recommended that the USG “make [its] disapproval of shootdowns in
    12
    See, e.g., Hill, 
    55 F.3d at 1201
    , discussing who could be culpable under section 2(a) for aiding
    and abetting an unlawful gambling business:
    [I]t is quite obvious that bettors should not be held criminally liable either under the
    [substantive] statute or under § 2 and that local merchants who sell the accounting pa-
    per or the computers on which bets are registered are not sufficiently connected to the
    enterprise to be included even if they know that their goods will be used in connection
    with the work of the business. On the other hand, it seems similarly obvious that the
    seller of computer hardware or software who is fully knowledgeable about the nature
    and scope of the gambling business would be liable under § 2 if he installs the com-
    puter, electronic equipment and cables necessary to operate a “wire shop” or a pari-
    mutuel betting parlor, configures the software programs to process betting information
    and instructs the owners of the gambling business on how to use the equipment to
    make the illegal business more profitable and efficient. Such actions would probably
    be sufficient proof that the seller intended to further the criminal enterprise.
    22
    Liability of Contractors in Airbridge Denial Programs
    violation of § 32(b) clear in order to eliminate any suggestion that USG personnel
    have entered into a conspiratorial agreement with foreign officials.” Id. at 161–62.
    We also recommended that “USG agencies should specifically instruct their
    personnel not to enter into any agreements or arrangements with the officials or
    agents of foreign governments that encourage or condone shootdowns.” Id. at 162
    (citation omitted).
    Once again, the significant difference between the present circumstances and
    those in 1994 is that, under 
    22 U.S.C. § 2291-4
    , a foreign government may
    maintain a lawful program in which certain civil aircraft are shot down. A
    contractor who supplies assistance for interdictions, but does not agree to the use
    of the assistance for unlawful shootdowns, is not guilty of conspiracy. Ordinarily,
    moreover, if a contractor is providing assistance for a lawful program, and a pilot
    or other participant in the foreign government’s chain of command in that program
    commits an act that leads to an illegal shootdown, there will be no reason for a
    finder of fact to infer that the contractor had agreed to assist in that unlawful act.
    The reasonable inference, absent facts to the contrary, would be that the contrac-
    tor, far from agreeing to an illegal use of its assistance, intended that the assistance
    would be used in accordance with the program that has been certified.13
    III.
    We now turn to, and can briefly dispose of, what should be the more usual case,
    in which a contractor’s assistance is used for lawful interdictions.
    Section 2291-4 declares that, when the conditions of a Presidential determina-
    tion and reasonable suspicion of drug trafficking have been met, “it shall not be
    unlawful for authorized employees or agents of a foreign country . . . to interdict
    or attempt to interdict an aircraft in that country’s territory or airspace,” and “it
    shall not be unlawful for authorized employees or agents of the United States . . .
    to provide assistance for the interdiction actions.” 
    22 U.S.C. § 2291-4
    (a), (b).
    When these provisions apply, they rule out a contractor’s liability for aiding and
    abetting. The statute on aiding and abetting provides: “Whoever commits an
    offense against the United States or aids, abets, counsels, commands, induces or
    procures its commission, is punishable as a principal.” 
    18 U.S.C. § 2
    (a). As the
    Supreme Court has explained, and as we noted above, section 2(a) declares that
    “those who provide knowing aid to persons committing federal crimes, with the
    intent to facilitate the crime, are themselves committing a crime.” Central Bank,
    
    511 U.S. at
    181 (citing Nye & Nissen, 
    336 U.S. at 619
    ). An accessory thus may be
    culpable under section 2(a) only if the government proves that the underlying
    offense was, in fact, committed. See, e.g., United States v. Branch, 
    91 F.3d 699
    ,
    732 (5th Cir. 1996); United States v. Hill, 
    55 F.3d 1197
    , 1204–05 (6th Cir. 1995);
    13
    We do not address any possible application of 18 U.S.C. § 2339A, which deals with the provision
    of material support in connection with a variety of offenses, including 
    18 U.S.C. § 32
    .
    23
    Opinions of the Office of Legal Counsel in Volume 28
    Superior Growers, 982 F.2d at 178; United States v. Horton, 
    921 F.2d 540
    , 543–
    44 (4th Cir. 1990); United States v. Campa, 
    679 F.2d 1006
    , 1013 (1st Cir. 1982).
    Here, however, under section 2291-4, the action that the contractor has assisted
    “shall not be unlawful,” and there is no underlying offense that the contractor
    could aid and abet.14
    Nor would the lawful interdiction of a civil aircraft create any liability for a
    contractor under 
    18 U.S.C. § 371
    . Because there would be no agreement “to
    commit any offense against the United States,” the contractor could not be guilty
    of an unlawful conspiracy under 
    18 U.S.C. § 371
    .
    M. EDWARD WHELAN III
    Principal Deputy Assistant Attorney General
    Office of Legal Counsel
    14
    In some circumstances, a contractor might be an “agent” of the United States or the foreign
    government and thus covered directly by the language in 
    22 U.S.C. § 2291-4
     declaring that the
    specified actions by “authorized employees or agents” are not unlawful. In view of our discussion in
    the text, we need not resolve the question of the circumstances under which a contractor would be an
    “agent.”
    24