American Immigration Lawyers Association v. United States Department of Homeland Security ( 2020 )


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  •                              UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF COLUMBIA
    AMERICAN IMMIGRATION LAWYERS
    ASSOCIATION,
    Plaintiff,
    Case No. 1:16-cv-02470 (TNM)
    v.
    U.S. DEPARTMENT OF HOMELAND
    SECURITY, et al.,
    Defendants.
    MEMORANDUM OPINION
    Seven years ago, the American Immigration Lawyers Association (“AILA”) submitted a
    Freedom of Information Act request to the U.S. Customs and Border Protection (“CBP”) for
    information on the inspection and admission process for entry into the United States. CBP has
    produced nearly 400 responsive documents. After earlier efforts by the Court and the parties to
    narrow the dispute, the sole remaining issue is whether CBP properly withheld information in a
    few dozen documents under FOIA’s law enforcement exemption, 5 U.S.C. § 552(b)(7)(E).
    Before the Court are the parties’ cross-motions for summary judgment. For the following
    reasons, both motions will be granted in part and denied in part.
    I.
    Several years ago, the Inspector Field Manual (“IFM”) was the “primary reference tool”
    that CBP officers used for the inspection and admission process for entry into this country. See
    Pl.’s Resps. to Defs.’ Statement of Material Facts ¶ 1, ECF No. 55-1. The IFM covered
    “inadmissibility issues, standards for admission, and acceptable evidence,” as well as details on
    the inspection process.
    Id. ¶ 2
    (cleaned up). But in 2013, CBP discontinued the IFM and sought
    to develop a new manual, the Officers Reference Tool (“ORT”). Decl. of James Ryan Hutton ¶¶
    4–5, ECF No. 16-2. Like the IFM, the ORT will serve as a “comprehensive ‘how to’ manual
    detailing official CBP policies and procedures for CBP’s admissibility mission.”
    Id. ¶ 5.
    Currently, the ORT only consists of two indexes designated as Chapters 11 and 12.
    Id. ¶ 6.
    There are no other chapters in the ORT. The Chapter 11 index includes hyperlinks to “various
    policies, memoranda, guides, manuals, and musters,” while the Chapter 12 index includes
    hyperlinks to “laws, regulations, and government systems that govern the admissibility of
    passengers at [U.S.] ports of entry.”
    Id. ¶¶ 7–8.
    Chapter 12 also contains hyperlinks to internal
    resources such as CBP’s Policy Online Document Search (“PODS”). Third Decl. by Patrick
    Howard ¶ 28, ECF No. 43-2.
    In 2013, AILA submitted a FOIA request seeking records about the instructions provided
    to the field/ports-of-entry on the discontinuation of the IFM and implementation of the ORT.
    See Compl. for Decl. & Inj. Relief (“Compl.”) Ex. A at 2–3, ECF No. 1-1. 1 AILA also requested
    a “complete copy of the portions of the ORT that have been finalized and implemented for use in
    the field/ports-of-entry.”
    Id. at 3.
    AILA did not receive a response so it filed this action against
    CBP and its parent agency, the U.S. Department of Homeland Security (collectively, the
    “Government”). See Compl.
    CBP first produced a 25-page online index of ORT Chapter 11, a one-page index of ORT
    Chapter 12, and two records related to the discontinuation of the IFM. See Decl. of Betsy
    Lawrence ¶¶ 2–3, ECF No. 19;
    id. Exs. B, C,
    and D. But it did not search or produce any of the
    documents listed in Chapters 11 or 12. When the Government first moved for summary
    judgment, this Court agreed with AILA that CBP must review the listed documents and produce
    1
    All page citations refer to the page numbers that the CM/ECF system generates.
    2
    any that were responsive and non-exempt. See Mem. Order at 4–5, ECF No. 30. CBP then
    produced 363 of the documents from ORT Chapter 11 and “focused its attention on the PODS
    database” for Chapter 12. 2 See Pl.’s Resps. to Defs.’ Statement of Material Facts ¶¶ 10, 12.
    AILA moved for summary judgment, arguing that CBP still had not conducted an adequate
    search for responsive records and had failed to explain why certain documents were withheld or
    redacted. See Pl.’s Mot. for Summ. J., ECF No. 36-1. The Court held a hearing on this motion.
    See Min. Entry (Mar. 15, 2019). The Court denied AILA’s motion without prejudice but ordered
    the Government to file a supplemental declaration detailing its search methods, produce a
    Vaughn index for the redactions and withholdings, and produce or justify withholding five
    documents referred to other federal agencies. See Order, ECF No. 45. In total, the Government
    produced almost 400 documents. See Pl.’s Resps. to Defs.’ Statement of Material Facts ¶ 14.
    CBP initially withheld information under four FOIA statutory exemptions: 5 U.S.C. §
    552(b)(5), (b)(6), (b)(7)(C), and (b)(7)(E). To support these withholdings, it submitted a Vaughn
    index and a Fourth Declaration by Patrick Howard (“Fourth Howard Declaration”). See Defs.’
    Mot. for Summ. J. Ex. A at 2–10, 15–322, ECF No. 53-3. For each document, the Vaughn index
    provides a document description, the applicable FOIA exemption(s), and a description of the
    material withheld and why the exemption applies. See
    id. at 15–322.
    The Fourth Howard Declaration does not address each document. See
    id. at 2–10.
    For
    example, it identifies five categories of information withheld under 5 U.S.C. § 552(b)(7)(E): (1)
    “Codes and Functionalities of CBP Systems,” (2) “Training Materials for Users of CBP
    Systems,” (3) “Email Addresses of Group Listserves,” (4) “Law Enforcement Methods for
    2
    “Due to the massive nature of records hyperlinked to Chapter 12, the parties conferred and
    Plaintiff focused its attention on the PODS database.” See Pl.’s Resps. to Defs.’ Statement of
    Material Facts ¶ 12.
    3
    Processing Passengers at Ports of Entry,” and (5) “Information Related to Targeting.”
    Id. at 7–9.
    It states that “CBP is constrained in describing the techniques, procedures, and guidelines by its
    Exemption (b)(7)(E) withholdings, so as to avoid revealing information CBP seeks to protect,
    which is not generally known the public.”
    Id. ¶ 19.
    Thus, it “aims to fairly represent the
    Exemption (b)(7)(E) withholdings but does not purport to be an all-inclusive rendering of all
    withheld information.”
    Id. For each category,
    the Fourth Howard Declaration explains the type
    of information withheld and why that information qualifies for protection under 5 U.S.C. §
    552(b)(7)(E).
    Before these cross-motions, the parties worked together to narrow their dispute. For
    example, AILA agreed not to challenge the adequacy of CBP’s search, and CBP re-reviewed and
    produced less redacted versions of many documents. Pl.’s Cross-Mot. for Summ. J. (“Pl.’s
    Cross-Mot.”) at 7, ECF No. 56-1. The parties’ collaboration left 71 disputed records remaining
    at the start of briefing.
    Id. But their collaborative
    efforts continued. Along with its opposition
    brief, the Government provided a supplemental Vaughn index. See Defs.’ Opp’n to Pl.’s Cross-
    Mot. for Summ. J. Ex. A (“Supp. Vaughn Index”), ECF No. 59-1. It also produced less redacted
    versions of 27 of the 71 disputed records. Pl.’s Reply in Supp. of Cross-Mot. for Summ. J.
    (“Pl.’s Reply”) at 5, ECF No. 64. AILA then elected not to challenge 21 of these newly redacted
    documents and another 14 documents.
    Id. It also dropped
    its challenge to redactions made
    under 5 U.S.C. § 552(b)(6) and (b)(7)(C). 3
    Id. at 5
    n.4.
    3
    5 U.S.C. § 552 (b)(5) also is no longer applicable because none of the remaining redactions
    invoke this exemption.
    4
    The Court also ordered the Government to produce updated versions of five documents.
    See Order, ECF No. 65. The Government complied and AILA did not raise any issues with this
    production. See Notice of Filing of Release of Rs., ECF No. 66.
    After four years of litigation, only a single dispute remains: whether the Government
    properly withheld information in 36 documents under 5 U.S.C. § 552(b)(7)(E) (“Exemption
    7(E)”). 4
    II.
    To win on summary judgment, the moving party must show that “there is no genuine
    dispute as to any material fact and the movant is entitled to judgment as a matter of law.” Fed.
    R. Civ. P. 56(a). FOIA requires federal agencies to “disclose information to the public upon
    reasonable request unless the records at issue fall within specifically delineated exemptions.”
    Judicial Watch, Inc. v. FBI, 
    522 F.3d 364
    , 366 (D.C. Cir. 2008). Thus, in a FOIA case, an
    agency is entitled to summary judgment if it shows that there is no genuine dispute about
    whether “each document that falls within the class requested either has been produced, is
    unidentifiable or is wholly exempt from [FOIA’s] inspection requirements.” See Weisberg v.
    Dep’t of Justice, 
    627 F.2d 365
    , 368 (D.C. Cir. 2011) (cleaned up).
    The agency “bears the burden of proving the applicability of claimed exemptions,” and
    its justification is sufficient “if it appears logical or plausible.” ACLU v. Dep’t of Def., 
    628 F.3d 612
    , 619 (D.C. Cir. 2011) (cleaned up). It may submit declarations, a Vaughn index, or a
    combination of both to justify its withholdings under FOIA. See Judicial Watch, Inc. v. FDA,
    4
    The Court will refer to these documents in the order in which they appear in the supplemental
    Vaughn index. The disputed documents appear as Records 5-8, 11-14, 17, 20, 23-25, 27, 29-35,
    38, 40, 43-47, 49, 51, 53, 60-61, and 65-67. See Pl.’s Reply at 5.
    5
    
    449 F.3d 141
    , 146 (D.C. Cir. 2006). And courts afford this evidence a “presumption of good
    faith.” SafeCard Servs., Inc. v. SEC, 
    926 F.2d 1197
    , 1201 (D.C. Cir. 1991).
    AILA challenges only CBP’s withholdings under Exemption 7(E). See Pl.’s Reply at 5.
    This exemption protects information “compiled for law enforcement purposes” that would either
    “disclose techniques and procedures for law enforcement investigations or prosecutions,” or
    “disclose guidelines for law enforcement investigations or prosecutions if such disclosure could
    reasonably be expected to risk circumvention of the law.” 5 U.S.C. § 552(b)(7)(E).
    “Exemption 7(E) sets a relatively low bar for the agency to justify withholding.”
    Blackwell v. FBI, 
    646 F.3d 37
    , 42 (D.C. Cir. 2011). The agency must only show “logically how
    the release of the requested information might create a risk of circumvention of law.” Mayer
    Brown LLP v. IRS, 
    562 F.3d 1190
    , 1194 (D.C. Cir. 2009) (cleaned up). The redacted
    information need not be “‘how to’ manuals for law-breakers” because “the exemption is broader
    than that.”
    Id. at 1193.
    Although Exemption 7(E) “clearly protects information that would train
    potential violators to evade the law or instruct them how to break the law,” it also exempts
    “information that could increase the risks that a law will be violated or that past violators will
    escape legal consequences.”
    Id. (emphasis in original).
    III.
    The parties’ cross-motions for summary judgment raise three issues. First, whether
    CBP’s declarations and indexes on their face justify the withholdings under Exemption 7(E).
    Next, whether the redacted documents themselves show that the withheld information is
    protected under Exemption 7(E). And finally, whether CBP’s segregability determination was
    proper. In short, the Court finds for CBP on all three issues save for two minor exceptions.
    6
    A.
    The Court first must consider whether CBP has submitted evidence supporting its
    withholdings under Exemption 7(E). The question is whether there is a “reasonable basis to
    evaluate the claim of privilege.” See Judicial 
    Watch, 449 F.3d at 146
    (cleaned up). And the
    “touchstone” of the analysis is the function of the agency’s evidence, not the form. See
    id. It must provide
    a “relatively detailed justification, specifically identifying why a particular
    exemption is relevant and correlating those claims with the particular part of a withheld
    document to which they apply.” Mead Data Cent., Inc. v. Dep’t of Air Force, 
    566 F.2d 242
    , 251
    (D.C. Cir. 1977).
    CBP submitted the Fourth Howard Declaration and two Vaughn indexes to support its
    Exemption 7(E) withholdings. AILA attacks each separately, but for similar reasons. It states
    that the Fourth Howard Declaration fails to “describe a single record at issue in this case” or
    “explain how or why its boilerplate language applies to any particular application of Exemption
    7(E).” Pl.’s Reply at 7. AILA similarly challenges the Vaughn indexes as providing “only
    minimal, vague language” that fails to identify “the reasons why a particular exemption is
    relevant and correlat[e] those claims with the particular part of the withheld document to which
    they apply.”
    Id. at 8–9.
    But the evidence must be viewed together, not in a vacuum. CBP chose a “legitimate
    way” to describe the basis for its withholdings under Exemption 7(E). See Judicial 
    Watch, 449 F.3d at 148
    . It elected to “tie each document to one or more claimed FOIA exemptions” in the
    Vaughn indexes and “summarize the commonalities of the documents” in the Fourth Howard
    Declaration.
    Id. Combined, they provide
    a reasonable basis to assess the withholdings under
    Exemption 7(E).
    7
    1.
    First, AILA identifies Exemption 7(E) justifications it claims are “vaguely described”
    because they lack “specifics about how and why the withheld information could risk
    circumvention of the law.” Pl.’s Reply at 8–9 (discussing Records 17, 20, 32, 35, 40, and 60).
    But CBP must walk a fine line. It must describe why Exemption 7(E) applies without disclosing
    the very techniques, procedures, and guidelines it seeks to protect. See Fourth Howard Decl. ¶
    19 (“CBP is constrained in describing the techniques, procedures, and guidelines by its
    Exemption (b)(7)(E) withholdings, so as to avoid revealing information CBP seeks to protect,
    which is not generally known to the public.”). That is why Exemption 7(E) sets a “relatively low
    bar.” 
    Blackwell, 646 F.3d at 42
    .
    CBP clears this bar. Its evidence establishes that the withheld information in these
    documents would “train potential violators to evade the law or instruct them how to break the
    law,” or “increase the risks that a law will be violated or that past violators will escape legal
    consequences.” Mayer 
    Brown, 562 F.3d at 1193
    (emphasis in original). Indeed, the protected
    information in these documents appears to be central to CBP’s law enforcement mission. CBP
    withheld the techniques and procedures it employs to determine eligibility to enter or remain in
    the United States and assess and monitor risks at the borders.
    Record 17 contains details for interviewing applicants for expedited removal, see Supp.
    Vaughn Index at 14, Record 20 involves “law enforcement techniques and procedures related to
    determining admissibility at ports of entry,” see
    id. at 17,
    Record 40 addresses “law enforcement
    tactics and procedures geared towards identifying and detecting violators of student visas,” see
    id. at 39,
    and Record 60 provides the techniques and procedures “utilized during inspections at
    ports of entry to determine when a further scrutiny is required,” see
    id. at 60.
    CBP also did not
    8
    disclose “sensitive” techniques and procedures for processing records in its law enforcement
    systems in Records 32 and 35, including how to process “individuals formerly subject to national
    security reporting and registration requirements.” See
    id. at 31, 34.
    This includes the
    “information CBP officer must consider and prioritize, and how to document such encounters in
    CBP systems.”
    Id. at 34.
    CBP asserts that revealing any of this information would “advise potential violators of
    CBP’s law enforcement techniques and procedures, thereby enabling them to circumvent the
    law, avoid detection, and evade apprehension.”
    Id. at 39, 60;
    see
    id. at 14, 17, 31, 34–35.
    And
    that disclosure would “thwart CBP’s current law enforcement efforts and risk individuals
    circumventing CBP’s future efforts.”
    Id. at 31, 35, 39, 60.
    This is so because would-be violators
    could “alter behavior, change associations, or develop countermeasures to thwart the
    effectiveness” of these procedures and techniques. Fourth Howard Decl. at 9.
    Application of Exemption 7(E) for these documents is “self-evident.” See Morley v. CIA,
    
    508 F.3d 1108
    , 1129 (D.C. Cir. 2007). CBP cannot reveal the details of these techniques and
    procedures because doing so would allow those seeking to circumvent the federal immigration
    laws to extrapolate what to avoid and how to prepare, increasing the risk that they enter or
    remain in the United States illegally. See Pub. Emps. for Envtl. Resp. v. U.S. Section, Int’l
    Boundary & Water Comm’n, 
    740 F.3d 195
    , 205 (D.C. Cir. 2014) (finding agency properly
    withheld emergency action plans under Exemption 7(E) because “[t]errorists or criminals could
    use the information in the emergency action plans to thwart rescue operations . . . or to obstruct
    attempts to investigate the source of such a failure”). To grant AILA’s request for more
    information would be untenable. It would require disclosure of the very details that create the
    risk that a law will be circumvented in the first place. See Fourth Howard Decl. ¶ 19. That is not
    9
    what FOIA contemplates. Accord Barnard v. Dep’t of Homeland Sec., 
    598 F. Supp. 2d 1
    , 22–23
    (D.D.C. 2009).
    That these justifications borrow from the statutory language of Exemption 7(E) does not
    make them deficient. CBP may use “the language of the statute as part of its explanation for
    withholding documents” because it “links the statutory language to the withheld documents.”
    Judicial 
    Watch, 449 F.3d at 147
    .
    2.
    Second, AILA claims that CBP failed to correlate the basis for Exemption 7(E) to each
    redaction in a document. See Pl.’s Reply at 9. It points to Record 5 and similarly lengthy
    documents for which the Vaughn indexes include only a single justification for the redactions.
    Id. In other words,
    AILA argues that because these documents are longer, there must be more
    than one reason for the redactions that CBP has not articulated. Not so. It is plausible, if not
    expected, that the same type of information in the same document is redacted for the same
    reason. CBP need not repeat the same justification each time. See Judicial 
    Watch, 449 F.3d at 147
    (“We have never required repetitive, detailed explanations for each piece of withheld
    information[.]”).
    Record 5 is a 19-page document titled “I-94 Automation Guidelines for Processing
    Travelers at Primary and Secondary.” See Second Decl. of Kristin Macleod-Ball (“Second
    Macleod-Ball Decl.”) Ex. A, ECF No. 56-5. In this document, CBP redacted “training materials
    for its internal systems used by CBP officers and agents,” including “names of databases,
    internal system codes and information related to CBP system interfaces.” Supp. Vaughn Index at
    3. It explained that Exemption 7(E) applies because disclosure of this information “could be
    used to locate, access, and navigate internal law enforcement computer systems and/or databases
    10
    and risk compromising the integrity of CBP systems.”
    Id. The Fourth Howard
    Declaration
    further explains that disclosing these training materials would reveal the “location of information
    CBP gathers, analyzes and utilizes within such databases making them vulnerable to cyber-
    attacks,” and would “allow wrongdoers to gain unauthorized access to CBP systems and
    databases and manipulate information available to CBP officers.” See Fourth Howard Decl. at 8.
    These explanations are neither vague nor boilerplate. CBP need not expose its systems to
    potential threats or unwanted access. See 
    Blackwell, 646 F.3d at 42
    . And it is unnecessary to
    justify each redaction for “names of databases,” “internal system codes,” or “information related
    to CBP system interfaces” because access to any of this information poses the same risk. It
    makes CBP’s systems “vulnerable and weaken[s] their effectiveness” as a tool for CBP to
    enforce federal immigration laws. See 
    Morley, 508 F.3d at 1129
    . Thus, the single explanation
    for these redactions suffices. See Judicial 
    Watch, 449 F.3d at 147
    .
    In sum, the Fourth Howard Declaration—which justifies withholding each category of
    information—and the two Vaughn indexes—which justify withholding information in each
    document—collectively establish a reasonable basis to assess the Exemption 7(E) withholdings.
    B.
    The next issue is whether the content of the documents and withheld information
    qualifies for protection under Exemption 7(E). To do so, it must meet two criteria. The
    information must be “compiled for law enforcement purposes” and it must either “disclose
    techniques and procedures for law enforcement investigations or prosecutions,” or “disclose
    guidelines for law enforcement investigations or prosecutions if such disclosure could reasonably
    be expected to risk circumvention of the law.” 5 U.S.C. § 552(b)(7)(E). Both requirements are
    met here.
    11
    1.
    A document is “compiled for law enforcement purposes” if the “investigatory activity
    that gave rise to the document is related to the enforcement of federal laws, and there is a rational
    nexus between the investigation at issue and the agency’s law enforcement duties.” Tax Analysts
    v. IRS, 
    294 F.3d 71
    , 78 (D.C. Cir. 2002) (cleaned up). The materials need not be compiled for a
    specific investigation.
    Id. at 79.
    And courts are “more deferential to the agency’s claimed
    purpose for the particular records” where “the agency’s principal function is law enforcement.”
    Pub. Emps. for Envtl. 
    Resp., 740 F.3d at 203
    (cleaned up). That deference applies here because
    “CBP is indisputably a law enforcement agency.” Gilman v. Dep’t of Homeland Sec., 32 F.
    Supp. 3d 1, 19 (D.D.C. 2014).
    It is unclear whether AILA still claims some records were not “compiled for law
    enforcement purposes.” AILA originally challenged some records on this basis. See Pl.’s Cross-
    Mot. at 16–17. But it did not re-raise these arguments in its reply after receiving the
    supplemental Vaughn index and documents with revised redactions. 5 To avoid any doubt, the
    Court finds the remaining documents satisfy this requirement.
    CPB’s principal mission is to protect the borders, enforce federal immigration law, and
    facilitate international trade and travel. Accord 
    Barnard, 598 F. Supp. 2d at 15
    . The five
    categories of withheld information share a rational nexus to this mission. See Fourth Howard
    Decl. at 7–9. CBP’s computer systems and means of communication enable it to convey law
    enforcement information, “gather, analyze and utilize” this information, and run “database
    5
    For example, AILA argued that a document titled “Forwarding Form I-275 to the U.S.
    Department of State” was not compiled for law enforcement purposes. See Pl.’s Cross-Mot. at
    16–17. But this challenge is moot because CBP later removed all Exemption 7(E) redactions
    from this document. See Supp. Vaughn Index at 17.
    12
    queries” to carry out its enforcement mandate. See
    id. at 8.
    And how CBP officers examine
    applicants for entry into the United States and assess, monitor, and prevent risks at the borders
    rationally relates to ensuring only those lawfully permitted to enter the country do so. See
    id. at 8–9.
    Each of the documents also shares a nexus to CBP’s enforcement mandate. They provide
    instructions on how to (1) interpret and apply the federal immigration laws, see, e.g., Second
    Macleod-Ball Decl. Ex. J, ECF No. 56-14;
    id. Ex. Y, ECF
    No. 56-29; (2) assess and process
    travelers for entry into and removal out of the country, see, e.g.
    , id. Ex. V, ECF
    No. 56-26;
    id. Ex. SS, ECF
    No. 56-49; and (3) charge applicants for violating federal immigration laws, see,
    e.g.
    , id. Ex. B, ECF
    No. 56-6;
    id. Ex. BB, ECF
    No. 56-32. The Court is thus satisfied that the
    disputed records were compiled for law enforcement purposes.
    2.
    AILA’s challenge focuses on the second requirement of Exemption 7(E). The withheld
    information must risk disclosing either “techniques and procedures for law enforcement
    investigations or prosecutions,” or “guidelines for law enforcement investigations or
    prosecutions if such disclosure could reasonably be expected to risk circumvention of the law.”
    5 U.S.C. § 552(b)(7)(E). It raises two arguments for why the withholdings fall short. Neither is
    persuasive.
    First, AILA claims some withholdings are overbroad because the “relevant procedure is
    based on a publicly available document or policy or necessarily is made known through use,” or
    they “describe the legal basis for taking an enforcement action rather than a technique,
    procedure, or guideline.” See Pl.’s Reply at 14–15 (cleaned up). AILA points to the redactions
    in Records 14 and 23 to bolster this argument.
    13
    Record 14 is a CBP memorandum related to “Unlawful Presence and Unlawful Status.”
    See Second Macleod-Ball Decl. Ex. J, ECF No. 56-14. AILA claims that the text “suggests that
    some redactions provide a legal assessment of when unlawful presence does and does not
    accrue.” Pl.’s Reply at 10. It appears to base this claim on an unredacted section of the
    document that quotes the statutory language of Section 212(a)(9)(B)(ii) of the Immigration and
    Nationality Act (“INA”). Second Macleod-Ball Decl. Ex. J at 1, ECF No. 56-14.
    Record 23 is a CBP memorandum addressing “Inadmissible Aliens with Medical
    Conditions and Family Units.” See Pl.’s Mot. for Summ. J. Ex. G, ECF No. 36-9. The
    document is labeled “Law Enforcement Sensitive.”
    Id. But it refers
    to a publicly available
    November 2014 memorandum titled “Policies for the Apprehension, Detention and Removal of
    Undocumented Immigrants.” See
    id. Pointing to this
    reference, AILA argues that the redactions
    in Record 23 must cover public information not protected under Exemption 7(E). Pl.’s Reply at
    13.
    But the presence of unredacted, publicly available information in Records 14 and 23 does
    not overcome CBP’s decision to withhold information in these documents under Exemption
    7(E). That is because how CBP employs public information may not be known and can itself
    disclose law enforcement techniques and procedures. See Shapiro v. U.S. Dep’t of Justice, 
    893 F.3d 796
    , 800 (D.C. Cir. 2018) (“[E]ven if a database is available and its search terms are
    available to the public, the methods that the FBI uses to search the database and what results it
    considers meaningful . . . can reveal law enforcement techniques and procedures”). Indeed,
    discussion of public information still may reveal “what information CBP considers when
    analyzing its vulnerabilities at the border, and this analysis, itself, is not publicly known and may
    risk circumvention of the law.” 
    Gilman, 32 F. Supp. 3d at 21
    . CBP need not disclose all details
    14
    “because some aspects of them are known to the public.” 6 
    Barnard, 598 F. Supp. 2d at 23
    .
    The withholdings in Records 14 and 23 could just as likely reflect internal CBP analyses
    or instructions based on Section 212(a)(9)(B)(ii) of the INA or the November 2014
    memorandum that have not been disclosed to the public. Indeed, CBP has represented that the
    redactions in Record 14 protect “examples” to identify those who are unlawfully within the
    United States, and Record 23 covers “what circumstances CBP must contact ICE and criteria
    CBP must consider.” Supp. Vaughn Index at 11, 20. Without more, reference to a public
    document or statute will not overcome the deference CBP must receive for its Exemption 7(E)
    withholdings.
    Second, AILA argues that some withholdings “would not provide enough detail to enable
    circumvention of the law if disclosed.” Pl.’s Reply at 14–15. But this argument is speculative.
    As already explained, CBP sufficiently justified why the withheld information in each record
    risks circumvention of the law. Courts defer to the Exemption 7(E) designations of law
    enforcement agencies such as CBP for a reason. See Pub. Emps. for Envtl. 
    Resp., 740 F.3d at 203
    . They are in the best position to know what information “could increase the risks that a law
    will be violated or that past violators will escape legal consequences.” Mayer 
    Brown, 562 F.3d at 1193
    (emphasis in original). AILA has produced no affirmative evidence to contradict these
    withholdings. The Court thus will not second-guess CBP’s Exemption 7(E) determinations.
    6
    The Court previously agreed with AILA that some of the information in Records 17, 45, and
    53 should be unredacted because the information had been disclosed. Order, ECF No. 65. It
    ordered the Government to produce updated versions of these documents.
    Id. CBP did so
    without objection from AILA. See Notice of Filing of Release of Rs., ECF No. 66. The Court
    thus construes AILA’s silence as confirmation that this dispute over Records 17, 45, and 53 is
    resolved.
    15
    There are two minor exceptions. CBP erred in redacting the subject lines in Records 32
    and 35. See Second Macleod-Ball Decl. Ex. AA, ECF No. 56-31;
    id. Ex. DD, ECF
    No. 56-34.
    That is because it already disclosed the full subject line of these documents in its Vaughn index.
    See Supp. Vaughn Index at 31, 34. CBP must reproduce these documents without the redactions
    in the subject line.
    The Court therefore concludes that CBP’s withholdings were proper under Exemption
    7(E) except for the redactions identified in Records 32 and 35.
    C.
    The final issue is whether CBP satisfied FOIA’s segregability requirement. Under FOIA,
    an agency must produce “[a]ny reasonably segregable portion of a record.” 5 U.S.C. § 552(b).
    “In order to demonstrate that all reasonably segregable material has been released, the agency
    must provide a detailed justification for its non-segregability.” Johnson v. Exec. Off. for U.S.
    Att’ys, 
    310 F.3d 771
    , 776 (D.C. Cir. 2002) (cleaned up). And an agency is “entitled to a
    presumption that [it] complied with the obligation to disclose reasonably segregable material,”
    which may be rebutted only with a “quantum of evidence.” Sussman v. U.S. Marshals Serv., 
    494 F.3d 1106
    , 1117 (D.C. Cir. 2007).
    CBP represents that its “analysts and attorneys reviewed each release of records line-by-
    line to confirm that any withholdings were proper, examined whether any discretionary waiver of
    any exemption was warranted, and determined whether any segregable, non-exemption
    information could further be released.” Fourth Howard Decl. ¶ 22 (cleaned up). Based on this
    review, CBP concluded that “all reasonably segregable portions of the relevant records have
    been released to AILA.”
    Id. (cleaned up). The
    Court finds that this representation combined
    with the Vaughn indexes satisfy CBP’s segregability obligation. See 
    Johnson, 310 F.3d at 776
    16
    (“The combination of the Vaughn index and the affidavits . . . are sufficient to fulfill the agency’s
    obligation to show with ‘reasonable specificity’ why a document cannot be further segregated.”).
    IV.
    Seven years after AILA first submitted its FOIA request and after nearly four years of
    litigation, multiple rounds of summary judgment briefing, and additional disclosures made under
    Court order or through voluntary concessions, it is time to put this FOIA case to rest. CBP has
    sufficiently justified its few remaining disputed withholdings, except for the minor corrections
    noted above. For all these reasons, the Court grants in part and denies in part the Government’s
    motion and AILA’s cross-motion. A separate Order will issue.
    2020.09.02
    16:45:09 -04'00'
    Dated: September 2, 2020                              TREVOR N. McFADDEN, U.S.D.J.
    17