Brady Center to Prevent Gun Violence v. U.S. Department of Justice ( 2019 )


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  •                               UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF COLUMBIA
    BRADY CENTER TO PREVENT GUN
    VIOLENCE,
    Plaintiff,
    v.
    Civil Action No. 17-2130 (RDM)
    U.S. DEPARTMENT OF JUSTICE, and
    BUREAU OF ALCOHOL, TOBACCO,
    FIREARMS, AND EXPLOSIVES,
    Defendants.
    MEMORANDUM OPINION AND ORDER
    The Brady Center to Prevent Gun Violence (“Brady Center”) brings this Freedom of
    Information Act (“FOIA”), 
    5 U.S.C. § 552
    , action against the U.S. Department of Justice and one
    of its components, the Bureau of Alcohol, Tobacco, Firearms, and Explosives (“ATF”), seeking
    the release of records it claims Defendants have improperly withheld. Dkt. 1 (Compl.). The
    Brady Center submitted two FOIA requests to the ATF—one seeking records relating to a paper
    written by a senior ATF official about ways to reduce gun regulations (“White Paper Request”),
    and the other seeking records relating to ATF inspections of federally-licensed gun dealers
    (“Warning Letters Request”). Dkt. 1-2; Dkt. 1-3. As required by order of this Court, the ATF
    released records responsive to the White Paper Request, but withheld certain records in whole or
    in part, and started releasing records responsive to the Warning Letters Request, but with
    substantial redactions. Although the ATF’s response to the Warning Letters Request is not yet
    complete, the Court granted the Brady Center’s request for a briefing schedule on (1) the
    adequacy of the ATF’s response to the White Paper Request, and (2) the lawfulness of the ATF’s
    redaction of certain information from records responsive to the Warning Letters Request.
    Minute Order (June 25, 2018).
    Consistent with that scheduling order, the parties filed cross-motions for partial summary
    judgment addressing those issues. Dkt. 16; Dkt. 17. For the reasons explained below, the Court
    will grant in part and deny in part the parties’ respective cross-motions. With respect to the
    White Paper Request, the Court holds that the ATF did not conduct an adequate search for
    responsive records; that the ATF lawfully concluded that unrelated attachments to responsive
    emails were outside the scope of the FOIA request; and that the parties’ dispute regarding
    assertion of the deliberative process privilege has been resolved by the Brady Center’s
    acquiescence in certain withholdings and the ATF’s decision to release other previously withheld
    records. With respect to the Warning Letters Request, the Court holds that the ATF lawfully
    redacted certain information but that, without a Vaughn index or additional information
    regarding the specifics of each redaction, the Court cannot determine whether each redaction was
    permissible.
    I. BACKGROUND
    The Brady Center submitted the first of the two FOIA requests at issue here on March 29,
    2017. Dkt. 1-2. That request—the White Paper Request—sought:
    (1)     All communications between ATF employees related to the January 20,
    2017 White Paper titled “Federal Firearm Regulations—Options to
    Reduce or Modify Firearms Regulations[;]”
    (2)     All communications between ATF employees and members of the
    Presidential Transition Team related to the January 20, 2017 White
    Paper . . . [;]
    (3)     All communications between ATF employees and non-government
    employees, including but not limited to representatives from gun
    manufacturers or the National Rifle Association, related to the January
    20, 2017 White Paper . . . [; and]
    2
    (4)     All other documents, including drafts, related to the January 20, 2017
    White Paper . . . .
    Dkt 1-2 at 2. By the time the Brady Center filed suit six months later, the ATF had yet to make a
    final determination with respect to the White Paper Request. Dkt. 1 at 2.
    The Brady Center submitted the second of the requests at issue—the Warning Letters
    Request—on August 7, 2017. Dkt. 1-3. That request sought:
    (1)     All warning letters, warning conference notices, and the underlying
    reports of violations and firearms inspection narrative reports, issued to
    federal firearms licensees from July 1, 2015 through June 30, 2017[;
    and]
    (2)     All notices of revocation of license and the accompanying ATF Form
    4500s issued to federal firearms licensees from July 1, 2015 through
    June 30, 2017.
    Dkt. 1-3 at 2. As with the White Paper Request, the ATF failed to make a final determination
    with respect to the Warning Letters Request by the time the Brady Center brought suit.
    At an initial status conference, the ATF explained that it had gathered many—but not
    all—of the records responsive to the White Paper Request for the purpose of responding to a
    similar request made by the House Committee on Oversight and Government Reform. Minute
    Entry (Dec. 21, 2017). The Court, accordingly, directed that the ATF promptly release any non-
    exempt records that it had already gathered and that the parties file a joint status report
    addressing the remaining issues. The ATF subsequently released 1,134 pages responsive to the
    White Paper Request and provided the Brady Center with a Vaughn index regarding its
    withholdings, and the parties agreed to a briefing schedule to address their remaining differences
    regarding the ATF’s response to the White Paper Request. In the meantime, the ATF started to
    release records responsive to the Warning Letters Request, albeit with substantial redactions.
    Many of those redactions were made pursuant to FOIA Exemption 3 on the ground that the ATF
    3
    was precluded from releasing the redacted information by an appropriation’s rider, known as the
    Tiahrt Rider, which precludes the ATF from expending any funds to disclose “any information
    required to be kept by [federal firearms] licensees pursuant to [18 U.S.C. §] 923(g) . . . or
    required to be reported [to the ATF] pursuant to paragraphs (3) and (7) of such section.”
    Consolidated and Further Continuing Appropriations Act of 2012, Pub. L. No. 112-55, 
    125 Stat. 552
    , 609 (2011).
    Against this backdrop, the Brady Center filed a motion requesting that the Court set a
    briefing schedule to address (1) the adequacy of the ATF’s search for records responsive to the
    White Paper Request; (2) the ATF’s decision to withhold attachments to responsive emails as
    “out of scope” of the FOIA request; (3) the ATF’s withholding of records responsive to the
    White Paper Request based on the deliberative process privilege; and (4) the ATF’s redactions of
    records responsive to the Warning Letters Request based on the Tiahrt Rider. Dkt. 13.
    In response, the ATF agreed that the parties should brief the issues relating to the White
    Paper Request but argued that the Brady Center’s request for an opportunity to address the
    ATF’s application of the Tiahrt Rider was premature because the ATF was still processing
    records responsive to the Warning Letters Request. Dkt. 14 at 2. Following a status conference
    held to address these and other issues, the Court set a schedule for the parties to file cross-
    motions for summary judgment addressing (1) all issues posed by the ATF’s responses to the
    White Paper Request, and (2) the application of the Tiahrt Rider to the ATF’s responses to the
    Warning Letters Request. Minute Order (June 25, 2018). The Court held oral argument on the
    parties’ cross-motions for partial summary judgment on September 11, 2019, and the parties
    subsequently filed supplemental briefs addressing questions posed at oral argument, Dkt. 31;
    Dkt. 32.
    4
    II. LEGAL STANDARD
    To prevail on a motion for summary judgment, the moving party must “show that there is
    no genuine dispute as to any material fact and . . . [that it] is entitled to judgment as a matter of
    law.” Fed. R. Civ. P. 56(a); Celotex Corp. v. Catrett, 
    477 U.S. 317
    , 322 (1986). In
    a FOIA action, this means that “the agency must demonstrate that it has conducted a ‘search
    reasonably calculated to uncover all relevant documents.’” Steinberg v. U.S. Dep’t of Justice, 
    23 F.3d 548
    , 551 (D.C. Cir. 1994) (quoting Weisberg v. Dep’t of Justice, 
    745 F.2d 1476
    , 1485 (D.C.
    Cir. 1984)). To make this showing, the agency must provide a “reasonably detailed affidavit,
    setting forth the search terms and the type of search performed, and averring that all files likely
    to contain responsive materials (if such records exist) were searched.” Oglesby v. U.S. Dep’t of
    Army, 
    920 F.2d 57
    , 68 (D.C. Cir. 1990). Agencies may withhold responsive documents
    uncovered in that search only if those documents fall within one of the exemptions enumerated
    in 
    5 U.S.C. § 552
    (b). Insofar as the agency withholds responsive records pursuant to those
    exemptions, it must provide an index of that information and the justification that supports
    withholding each record. Vaughn v. Rosen, 
    484 F.2d 820
    , 827–28 (D.C. Cir. 1973).
    III. ANALYSIS
    The pending cross-motions address all issues posed by the ATF’s responses to the White
    Paper Request and address one, discrete issue posed by the ATF’s (not yet complete) responses
    to the Warning Letters Request. The Court will address each set of issues in turn.
    A.     White Paper Request
    The Brady Center initially identified three alleged deficiencies in the ATF’s responses to
    the White Paper Request: the adequacy of the ATF’s search for responsive records; the ATF’s
    invocation of FOIA Exemption 5 to withhold purportedly deliberative records; and the ATF’s
    5
    determination that otherwise non-responsive attachments to responsive emails fell outside the
    scope of the FOIA request. Dkt. 13. The second of these alleged deficiencies is no longer
    contested, however. The Brady Center has now withdrawn its objection to the ATF’s
    withholding of drafts of materials relating to inquiries from the House Oversight and
    Government Reform Committee, and the ATF has now released previously withheld drafts of the
    White Paper. Dkt. 31 at 2; Dkt. 32 at 2. As a result, the ATF is entitled to summary judgment
    with respect to the agency’s assertion of FOIA Exemption 5, with the exception of the Brady
    Center’s challenge to the ATF’s withholding of the drafts of the White Paper, which is now moot
    in light of the ATF’s release of the records at issue.
    The Court will, accordingly, limit its analysis of the White Paper Request to two issues:
    the adequacy of the search and the ATF’s “out of scope” determination.
    1.    Adequacy of the Search
    The Brady Center lodges two distinct challenges to the adequacy of the search the ATF
    conducted: the first concerns the adequacy of the search done by the author of the White Paper,
    former Acting Deputy Director (“ADD”) Ronald Turk, of his own personal email for responsive
    records, and the second concerns the search conducted by the ATF of its electronic and other
    files. Dkt. 17-2.
    a.      Acting Deputy Director Turk’s Search of His Personal Email
    The Brady Center first argues that the ATF has yet to carry its burden of demonstrating
    that it conducted an adequate search of ADD Turk’s personal email account, which contained
    agency records responsive to the White Paper Request. 
    Id.
     In FOIA litigation, the agency bears
    the burden of demonstrating that “it made a good faith effort to conduct a search for the
    requested records, using methods which can be reasonably expected to produce the information
    6
    requested.” Oglesby, 
    920 F.2d at 68
    . To satisfy this burden, the agency must submit a
    declaration that “explain[s] in reasonable detail the scope and method of the search [it]
    conducted,” Morley v. CIA, 
    508 F.3d 1108
    , 1121 (D.C. Cir. 2007) (citation and internal quotation
    marks omitted), in order to permit “a court to determine if the search was adequate,” Nation
    Magazine v. U.S. Customs Serv., 
    71 F.3d 885
    , 890 (D.C. Cir. 1995). The court must deny the
    agency’s motion for summary judgment “‘if a review of the record raises substantial doubt’”
    regarding the adequacy of the search. DiBacco v. U.S. Army, 
    795 F.3d 178
    , 188 (D.C. Cir. 2015)
    (citation omitted).
    Although ADD Turk is no longer employed by the ATF, he was an ATF employee at the
    time the Brady Center submitted the White Paper Request and at the time the ATF conducted its
    search for responsive records. Shortly after the Brady Center submitted its FOIA request, the
    House of Representatives Committee on Oversight and Government Reform made a similar
    request for records from the ATF. Dkt. 22-2 at 1–3 (Second Chisholm Decl. ¶¶ 3–6). Upon
    receipt of the congressional request, ADD “Turk informed the [ATF] team responsible for
    facilitating the response that he had a limited number of documents on his private/personal non-
    government email account.” 
    Id. at 3
     (Second Chisholm Decl. ¶ 6). Because the ATF did not
    have access to that account, ADD “Turk was tasked to search” his email for responsive records,
    and he “turned over 15 pages of material gathered from his private email account.” 
    Id.
     The
    ATF, however, does “not know what search terms,” if any, ADD “Turk utilized.” 
    Id.
     Rather, all
    the ATF can say is that “Turk clearly had intimate knowledge of what documents he had created
    and were housed on his private email accounts” and that “[t]he search was conducted with the
    knowledge that he would have to affirm to Congress that he had taken ‘reasonably diligent
    efforts to seek the information requested.’” 
    Id.
     (citation omitted).
    7
    The Brady Center contends that the ATF has yet to carry its burden of demonstrating that
    the search of ADD Turk’s personal email was complete, and the Court agrees. The ATF does
    not know what ADD Turk did to attempt to locate responsive records and can only speculate that
    he must have conducted a complete search. But, absent some information about what ADD Turk
    did, the Brady Center is deprived of its “opportunity to challenge the adequacy of the search,”
    and the Court is prevented from discharging its responsibility “to determine if the search was
    adequate.” Oglesby, 
    920 F.2d at 68
    . The Court notes, moreover, that the ATF has not provided a
    copy of any affirmation that ADD Turk may have provided to Congress regarding the scope and
    adequacy of his parallel search for records responsive to the congressional request for records.
    The Court recognizes that this case poses a hurdle not posed in the garden variety FOIA
    case because the records at issue were located on ADD Turk’s personal email account and
    because, although he was employed by the ATF at the time the search was conducted, he is no
    longer an ATF employee. At oral argument, counsel for the ATF conceded that, were the Court
    to conclude that the ATF had failed to demonstrate that the search of ADD Turk’s personal email
    account was adequate, the Court could “direct the agency to ask Mr. Turk to respond to
    questions” about what he did. Hrg. Tr. (Rough at 26). The Court will accept that concession for
    present purposes and will direct the ATF to use its best efforts to determine what ADD Turk did
    and to file any further evidence it is able to obtain with the Court within thirty days. Should that
    effort prove inadequate, the Court will determine at that time what, if any, further steps are
    appropriate. 1
    1
    The Court notes, however, that ADD Turk is not a party to this action, and further notes that
    the Brady Center has not sought to compel the Attorney General or the ATF to retrieve federal
    records pursuant to the Administrative Procedure Act, 
    5 U.S.C. § 706
    (1), and the Federal
    Records Act, 
    44 U.S.C. § 3105
    . See Judicial Watch, Inc. v. Kerry, 
    844 F.3d 952
    , 954 (D.C. Cir.
    8
    b.      The ATF’s Search of Agency Files
    The Brady Center also contests the adequacy of the remainder of the ATF’s search for
    responsive records, raising three alleged deficiencies.
    First, the Brady Center challenges the ATF’s use of the lone search term “White Paper.”
    Dkt. 17-2 at 19. According to the ATF, it used that term, and that term alone, because it was
    “the broadest possible search term[,] as from the beginning the document was referred to as the
    White Paper both on the document itself, in any known correspondence, and when used
    colloquially.” Dkt. 16-1 at 3 (Chisholm Decl. ¶ 7). The Brady Center, in response, argues that
    the ATF could have—and should have—employed a range of additional search terms, all of
    which might have reasonably located records that the ATF’s search failed to find. Dkt. 17-2 at
    19–20. Although the Court does not agree that each of the additional terms that the Brady Center
    proposes is necessary, the Court is convinced that the ATF’s search was inadequate.
    An “agency need not deploy every conceivable search term or permit the FIOA requester
    to dictate the search terms in the course of litigation, but it must use terms reasonably calculated
    to locate responsive records.” Sai v. TSA, 
    315 F. Supp. 3d 218
    , 241 (D.D.C. 2018). The “agency
    fulfills its obligations under FOIA if it can demonstrate beyond material doubt that its search was
    ‘reasonably calculated to uncover all relevant documents.’” Valencia–Lucena v. U.S. Coast
    Guard, 
    180 F.3d 321
    , 325 (D.C. Cir. 1999) (quoting Truitt v. Dep't of State, 
    897 F.2d 540
    , 542
    (D.C. Cir. 1990)). Here, the ATF’s search terms fail that test.
    In defense of its use of the single search term “White Paper,” the ATF asserts that
    (1) those words are on every version of the document created by former ADD
    Turk, (2) the actual document extension incorporated the words “White Paper,”
    (3) it was consistently circulated and referred to as the “White Paper” within
    2016) (recognizing a cause of action under 
    5 U.S.C. § 706
    (1) to enforce certain obligations under
    the Federal Records Act).
    9
    ATF, (4) media coverage and special interest groups, including Plaintiff’s
    organization, referred to the document as the “White Paper,” (5) and in
    communications with ATF, and during subsequent hearings, Congress almost
    exclusively used the phrase “White [P]aper” when referencing the document.
    Dkt. 22-2 at 4 (Second Chisholm Decl. ¶ 8). If all that the Brady Center sought were copies of
    the White Paper itself, that account would make perfect sense. It makes less sense, however, in
    light of the fact that the Brady Center sought all communications “related to [the White Paper].”
    Dkt. 1-2 at 2 (emphasis added). It is unlikely that the ATF’s search would have located records,
    for example, reflecting who, if anyone, first encouraged ADD Turk to prepare an evaluation of
    ways to reduce or modify gun regulations—before the document was created and named the
    “White Paper.” There is reason to believe, moreover, that preliminary communications of this
    type occurred. Indeed, ADD Turk told Congress that he had “had several conversations over the
    past year(s) with the [National Shooting Sports Foundation] [“NSSF”], [Mark] Barnes, and
    others regarding matters discussed in [the] White Paper.” Dkt. 17-6 at 4.
    Nor would it have been difficult to conduct a more comprehensive search. The ATF, for
    example, could easily have searched for communications between ADD Turk and the
    “Presidential Transition Team,” see Dkt. 1-2 at 2, or between ADD Turk and the NSSF, Barnes,
    or other likely participants in any communications leading up to the creation of the White Paper.
    It is not difficult to formulate a variety of possible search terms and to define a relevant
    timeframe for the search. It is not the Court’s role, however, to dictate precisely how the agency
    should conduct the search. Accordingly, for present purposes, the Court merely holds that the
    ATF’s exclusive use of the search term “White Paper” was not reasonably calculated to locate all
    records “related to” the white paper. See Coffey v. Bureau of Land Mgmt., 
    249 F. Supp. 3d 488
    ,
    498 (D.D.C. 2017) (search was inadequate where the “search terms by themselves . . .
    unreasonably limit[ed] the scope of [the] search to communications regarding a single subject . . .
    10
    in a manner inconsistent with the request”). The Court will leave it to the ATF, in the first (or,
    now, second) instance to craft a search protocol that “can be reasonably expected to produce the
    information requested,” Oglesby, 
    920 F.2d at 68
    . 2
    Second, the Brady Center contends that ATF improperly limited the set of individuals
    whose email accounts it searched to just 13 custodians. Dkt. 17-2 at 20. According to the Brady
    Center, the White Paper “was distributed to another nine named individuals, three intra-agency
    listservs, and about 88 redacted recipients,” and the ATF “should have searched each of these
    individuals’ files or, at least, explained why the excluded custodians were unlikely to have
    responsive documents.” 
    Id.
    The ATF, however, has now explained why it did not search those individuals’ email
    accounts, and, in the absence of any controverting evidence, the Court is persuaded. As
    explained in a declaration submitted by the Deputy Chief of the ATF’s Disclosure Division,
    Office of Public and Governmental Affairs:
    Based on conversations directly with the author of the White Paper [ADD Turk]
    it was determined that the thirteen custodians whose emails were pulled and
    searched encompassed the universe of any meaningful communications which
    were not merely downstream sharing. Once the documents were collected and
    reviewed it was clear that no additional custodian searches were required.
    Dkt. 22-2 at 2 (Second Chisholm Decl. ¶ 4). In other words, the ATF spoke with the key
    participant and, based on that conversation, it identified likely custodians of responsive records.
    It then collected and reviewed the responsive emails and, based on that review, concluded that
    none of the other recipients were likely to have responsive, non-duplicative records. The Brady
    Center, moreover, has now received those same records, and it has not brought to the Court’s
    2
    To minimize the cost and delay associated with further litigation, the Court encourages the
    parties to meet and confer regarding appropriate search terms and an appropriate date range for
    further searches.
    11
    attention any email suggesting that the ATF missed a further, likely custodian of responsive
    records. The Court recognizes that the Brady Center may have been at a slight disadvantage
    because the names of many of the additional recipients have been redacted. But that did not
    preclude it from flagging email communications at least suggesting that others may possess
    responsive records—not already found in the electronic files of the thirteen custodians. Under
    these circumstances, the Court concludes that the ATF has met its “initial burden of
    demonstrating . . . that it has performed an adequate search,” Hunton & Williams LLP v. EPA,
    
    248 F. Supp. 3d 220
    , 237 (D.D.C. 2017), and that the Brady Center has not met its burden of
    providing some “countervailing evidence” that would put the adequacy of the search “genuinely
    in issue,” Morley, 
    508 F.3d at 1116
    ; cf. Hunton & Williams LLP, 248 F. Supp. 3d at 237 (“Mere
    speculation . . . that private email accounts were used does not require the agency to perform a
    search.”).
    Third, the Brady Center challenges the adequacy of the search on the ground that the
    ATF searched only email accounts and did not search any non-email electronic files or any paper
    records. “It is well-settled that if an agency has reason to know that certain places may contain
    responsive documents, it is obligated under FOIA to search barring an undue burden.” Valencia-
    Lucena, 
    180 F.3d at 327
    . An agency “cannot limit its search to only one record system if there
    are others that are likely to turn up the information requested.” Oglesby, 
    920 F.2d at 68
    .
    Here, the ATF has proffered a declaration disclaiming the existence of electronic or paper
    files other than the email system that it searched. According to ATF, “[a]ll versions and drafts of
    the White Paper would be located within email communications,” and “there were no other
    electronic . . . or hard copy folders that related to the White Paper” that would merely duplicate
    what was found in the email of the thirteen identified custodians. Dkt. 22-2 at 2 (Second
    12
    Chisholm Decl. ¶ 5). That declaration is entitled to “a presumption of good faith, which cannot
    be rebutted by purely speculative claims about the existence and discoverability of other
    documents.” SafeCard Servs., Inc. v. Sec. & Exch. Comm’n, 
    926 F.2d 1197
    , 1200 (D.C. Cir.
    1991) (internal quotation and citation marks omitted).
    The Court, nevertheless, concludes that the scope of the ATF’s search was deficient in
    one respect: The White Paper was apparently created, and presumably stored, somewhere in the
    ATF’s word processing files, and, as the Brady Center observes, an important, responsive
    attachment to a produced email was not produced—namely, an early draft of the White Paper
    that was sent to an industry group. If, for whatever reason, that document could not be produced
    by email searches, it was unreasonable for the ATF to stop short of searching ADD Turk’s word
    processing files for the missing draft. To do so would not have been “unreasonably
    burdensome,” Nation Magazine, 
    71 F.3d at 892
     (ordering supplemental search of a separate
    records system for a particular document where that search would not be “unreasonably
    burdensome”), and it would have ensured that the ATF’s response was complete. To be sure, an
    agency has “discretion to confine its inquiry to a central filing system,” such as email, but it may
    do so only if “additional searches are unlikely to produce any marginal return.” Campbell v. U.S.
    Dep’t of Justice, 
    164 F.3d 20
    , 28 (D.C. Cir. 1998). In this case, the ATF had reason to believe
    that at least one record responsive to the Brady Center’s request was not found in the email files
    that it searched but could easily have been located by searching ADD’s Turk’s word processing
    files. Because the ATF did not do so, the Court concludes that the agency’s search was
    inadequate in this respect as well.
    13
    2.      “Out of Scope” Withholdings
    The Brady Center also contends that the ATF improperly withheld portions of responsive
    records—specifically, certain attachments to responsive emails—on the ground that those
    portions were “out of scope.” Dkt. 17-2 at 24. Where an “email included multiple attachments,”
    the ATF “consider[ed] any [attached] document which ha[d] no responsive information as
    wholly outside the scope.” Dkt. 22-2 at 5 (Second Chisholm Decl. ¶ 10). The Brady Center
    challenges that approach, arguing that the ATF had “no basis” for treating the responsive email
    and withheld attachment as separate records. Dkt. 17-2 at 20. Rather, if the email was
    responsive, in the Brady Center’s view, the ATF should have released the email and anything
    attached to it—regardless of whether the attachment had anything to do with the White Paper.
    In pressing this argument, the Brady Center relies on the D.C. Circuit’s opinion in
    American Immigration Lawyers Ass’n v. EOIR, 
    830 F.3d 667
    , 677 (D.C. Cir. 2016) (“AILA”).
    AILA, however, dealt with a different question than the one posed here—that is,
    “if the government identifies a record as responsive to a FOIA request, can the government
    nonetheless redact particular information within the responsive record on the basis that the
    information is non-responsive?” 
    Id.
     The answer to that question—“no”—followed from the text
    and structure of FOIA. As the Court of Appeals explained:
    The statute . . . sets forth the broad outlines of a process for agencies to follow
    when responding to FOIA requests: first, identify responsive records; second,
    identify those responsive records or portions of responsive records that are
    statutorily exempt from disclosure; and third, if necessary and feasible, redact
    exempt information from the responsive records. The statute does not provide
    for withholding responsive but non-exempt records or for redacting nonexempt
    information within responsive records.
    
    Id.
     That reasoning, however, does not extend to the question posed here—that is, what
    constitutes a distinct record for purposes of FOIA?
    14
    With respect to that question, the Brady Center cites two decisions from this district,
    Coffey v. Bureau of Land Mgmt., 
    277 F. Supp. 3d 1
     (D.D.C. 2017) (“Coffey II”) and Parker v.
    U.S. Dep’t of Justice, 
    278 F. Supp. 3d 446
     (D.D.C. 2017), which it contends support the
    conclusion that the ATF should have treated each email and its attachments as a single record.
    Dkt. 17-2 at 20 n.8. Both of those cases, however, concerned emails with single attachments the
    contents of which were directly referenced in the body of the email itself, thus making the email
    merely fragmentary without the attachment, and both cases expressly declined to adopt a per se
    rule that an email and its attachments must invariably be treated as a single record. Coffey II,
    277 F. Supp. 3d at 7–8; Parker, 278 F. Supp. 3d at 450–52.
    The most extensive discussion of how to distinguish between a single record with
    multiple parts and separate records is found in Shapiro v. CIA, 
    247 F. Supp. 3d 53
    , 74–75
    (D.D.C. 2017). In Shapiro, the court upheld the FBI’s determination that several large
    documents covering multiple subjects—such as manuals or comprehensive memoranda—could
    be treated as separate records. 
    Id.
     The fact that an agency may at times treat document
    compilations as separate records does not mean, however, an agency may always do so. In the
    absence of a statutory or judicial definition of “record,” the U.S. Department of Justice has
    offered criteria for agencies to consider when responding to FOIA requests, see DOJ, OIP
    Guidance: Determining the Scope of a FOIA Request, FOIA Update, Vol. XVI, No. 3 (1995),
    https://www.justice.gov/oip/blog/foia-update-oip-guidance-determining-scope-foia-request.
    That guidance, summarized in Shapiro, advises agencies to consider “the requester’s intent,
    maintaining the integrity of the released documents, the scope of the request, the agency’s own
    knowledge regarding storage and maintenance of documents, efficiency, cost, resource
    allocation, and maintaining the public’s trust in transparency.” Shapiro, 247 F. Supp. 3d at 74–
    15
    75 (citing DOJ, OIP Guidance: Determining the Scope of a FOIA Request, FOIA Update, Vol.
    XVI, No. 3 (1995)).
    The Brady Center contends that these criteria weigh in its favor, and it relies most
    notably, on the fact the White Paper Request requested the ATF to produce responsive
    documents “in their entirety, including all attachments, enclosures, and exhibits.” Dkt. 17-2 at
    19–20 (citing Dkt. 1-2 at 3). Elsewhere, however, the White Paper Request arguably takes a
    narrower view of what constitutes a distinct record; the request defines a “[d]ocument” to mean,
    among other things, “all documents referenced in subject documents including those noted as
    exhibits and attachments as well as those referenced in the bodies of subject documents or in
    footnotes to subject documents.” Id. at 2 (emphasis added). If a “document,” by definition,
    already included all attachments, there would have been no reason to clarify that the term
    “document” included attachments referenced in the body of the “subject documents.” See id.
    But, because FOIA requests are to be construed broadly in favor of the requester, see Nation, 
    71 F.3d at 890
    , the Court will assume that the White Paper Request unambiguously defined
    “responsive documents” as including “all attachments”—including those that are not referenced
    in the main document—and thus that the “requester’s intent,” Shapiro, 247 F. Supp. 3d at 74–75,
    was that emails and attachments be treated as a single “record.”
    The requester’s intent, however, is but one consideration in this Court’s evaluation of
    whether the agency has properly defined “record” in responding to the White Paper Request, and
    the remaining considerations weigh heavily against the Brady Center. See id. Most notably, the
    ATF has reviewed each of the attachments and has certified “that none of the separate documents
    which were considered outside of scope, including certain attachments to emails, contain any
    information even slightly related to the White Paper and, instead, are wholly on independent
    16
    subjects outside the purview of the underlying request.” Dkt. 22-2 at 9 (Second Chisholm Decl.
    ¶ 13) (emphasis added). Moreover, treating such wholly unrelated attachments as part of the
    main document would cause increased delay in the agency’s responses to FOIA requests, would
    increase costs to the agency and requesters, and would do little, if anything, to further FOIA’s
    goal of enhancing transparency and confidence in the workings of government. And, absent a
    reference to the attachment in the body of the main document, which the Brady Center has not
    brought to the Court’s attention, there is no reason to conclude that the ATF’s decision to treat
    attachments as a separate document undermined the “integrity” of the responsive records. Thus,
    on the facts of this case, the Court concludes that the ATF reasonably—and lawfully—decided to
    treat wholly unrelated attachments as separate records. To the extent the Brady Center seeks any
    of those attachments, it can always submit a FOIA request that identifies the particular
    attachment it seeks.
    B.     Warning Letter Request
    In contrast to the parties’ motions regarding the White Paper Request—which address all
    issues relevant to that request—the parties have briefed only a single question with respect to the
    Warning Letter Request: whether the ATF properly redacted the number of times in which a
    federal firearms licensee committed a particular regulatory violation pursuant to FOIA
    Exemption 3. See, e.g., Dkt. 17-2 at 28; Dkt. 24 at 21; Dkt. 22 at 26.
    The Warning Letter Request seeks “warning letters, warning conference notices, and the
    underlying reports of violated and firearms inspection narrative reports, issued to federal
    firearms licensees,” along with “notices of revocation of license[s] and the accompanying ATF
    Form 4500s issued to federal firearms licensees.” Dkt. 1-3 at 2. Although the ATF has not yet
    completed its review and production of responsive records, it has released hundreds of pages of
    17
    ATF firearms inspection reports. Dkt. 16-2 at 2–3 (Kil Decl. ¶ 7–9). Those pages include
    numerous redactions, including redactions marked: “(b)(3)—Public Law 112-55 (
    125 Stat. 552
    ).” See, e.g., Dkt. 17-8 at 25–30. The ATF has explained that it made those redactions
    pursuant to the FOIA Exemption 3 and the Tiahrt Rider. See Dkt. 16-2 at 4–7 (Kil Decl. ¶¶ 14–
    20).
    FOIA Exemption 3 protects records that are “specifically exempted from disclosure by
    statute . . . if that statute—(A)(i) requires that the matters be withheld from the public in such a
    manner as to leave no discretion on the issue; or (ii) establishes particular criteria for withholding
    or refers to particular types of matters to be withheld; and, (B) if enacted after the date of
    enactment of the OPEN FOIA Act of 2009, specifically cites to this paragraph.” 
    5 U.S.C. § 552
    (b)(3). According to the ATF, the Tiahrt Rider is such a statute. Congress has attached the
    rider to various appropriations bills and continuing resolutions between 2003 and 2012. See
    Everytown for Gun Safety Support Fund v. Bureau of Alcohol, Tobacco, Firearms and
    Explosives, No. 18-cv-2296, 
    2019 WL 3890220
    , at *3 (S.D.N.Y. Aug. 19, 2019). As adopted in
    the Consolidated and Further Continuing Appropriations Act of 2012, Pub. Law 112-55, Nov.
    18, 2011, 
    125 Stat. 552
    , the Tiahrt Rider provides, in relevant part:
    That, during the current fiscal year and in each fiscal year thereafter, no funds
    appropriated under this or any other Act may be used to disclose part or all of
    the contents of the Firearms Trace System database maintained by the National
    Trace Center of the Bureau of Alcohol, Tobacco, Firearms and Explosives or
    any information required to be kept by licensees pursuant to section 923(g) of
    title 18, United States Code, or required to be reported pursuant to paragraphs
    (3) and (7) of such section, except to [various law enforcement and national
    security agencies].
    Although included in various, annual appropriations, the Tiahrt Rider contains language of
    permanence—that is, “in each fiscal year thereafter.” 
    Id.
    18
    The record-keeping provision referenced in the Tiahrt Rider requires federally licensed
    “importer[s],” “manufacturer[s],” and “dealer[s]” to maintain “records of importation,
    production, shipment, receipt, sale, or other disposition of firearms” pursuant to regulations
    promulgated by the Attorney General. 
    18 U.S.C. § 923
    (g)(1). Those regulations, in turn, make
    it unlawful to sell any firearm to any person who is not also a licensee without completing an
    ATF Form 4473 concerning the transaction. 
    27 C.F.R. § 478.124
    . Licensees are also required to
    respond to requests from the Attorney General for information contained within these records to
    aid “a bona fide criminal investigation.” 
    18 U.S.C. § 923
    (g)(7). Licensees are separately
    required to “prepare a report of multiple sales or other dispositions” whenever a they make two
    or more sales over a five-day period to “an unlicensed person.” 
    Id.
     § 923(g)(3).
    Taking all of this together, the ATF contends that (1) the “warning letters, warning
    conference notices, . . . the underlying reports of violations and firearms inspection narrative
    reports,” and “notices of revocation of license and accompanying ATF Form 4500s” that the
    Brady Center is seeking, Dkt. 1-2 at 2, include “information required to be kept . . .
    or[ ]report[ed]” pursuant to § 923(g); (2) the Tiahrt Rider precludes the agency from disclosing
    that information; and (3) the agency, therefore, appropriately redacted the information at issue
    pursuant to FOIA Exemption 3. Finally, the ATF represents that, for “a number of years,” it has
    construed the Tiahrt Rider to permit it to release firearms inspection reports, including
    information regarding specific violations committed by a federal licensee, so long as “the
    associated number of times each violation occurred [has been] redacted.” Dkt. 16-2 at 7 (Kil
    Decl. ¶ 19) (emphasis added). For present purposes, all that is at issue is whether the ATF
    permissibly invoked FOIA Exemption 3 to redact that specific information from the records the
    Brady Center sought in the Warning Letters Request.
    19
    1.      Adequacy of the ATF’s Description of the Redactions
    As an initial matter, the Court must determine whether it can resolve that question on the
    present record. The Brady Center, for its part, argues that the ATF “has moved for summary
    judgment . . . without providing the Court with sufficient basis to assess the application of
    Exemption 3.” Dkt. 17-2 at 26. The Brady Center, in particular, faults the ATF for failing “to
    produce a Vaughn index to accompany the redacted documents,” id., or at least “a robust
    declaration that tied detailed descriptions of the categories of redacted information to specific
    sections of the redacted ATF forms, explaining how certain fields on the form were tied to
    specific information exempted from release by Section 923(g) or derived from the e-Trace
    database,” Dkt. 24 at 20. The ATF responds—not unfairly—that it was the Brady Center that
    asked the Court to address the applicability of the Tiahrt Rider before the ATF had completed its
    production because “‘the[ ]redactions at issue are . . . repetitive and not fact specific,’” leaving
    the ATF “whipsaw[ed]” between the Brady Center’s assurance that the issue was not fact
    dependent and was ripe for early decision and its demand for greater factual detail. Dkt. 22 at 22
    (quoting Dkt. 13 at 6–7). But, in any event, the ATF now takes the position that the Kil
    Declaration adequately describes the basis for the redactions to permit the Court to determine
    whether the Tiahrt Rider precludes release of the information at issue. Id.
    After reviewing the sample records and redactions the parties have filed, the Court
    concludes that both the Brady Center and the ATF have a point. There are many redactions that
    the Court cannot decipher on the present record. At times, for example, the ATF has redacted
    multiple, consecutive paragraphs, across many pages, and, at other times, it has redacted entire
    paragraphs based on more than one FOIA exemption, without indicating which redactions
    correspond with which exemption. See, e.g., Dkt. 24-3 at 12–17; Dkt. 24-4 at 6–16; Dkt. 24-5 at
    20
    3–5. At other times, however, the Court can discern the nature of the redaction from the
    document itself. One Report of Violation, for example, notes: “Failure to enter into a record
    each receipt and every disposition of individual firearms, [REDACTED] instances.” Dkt. 17-7 at
    22. Another notes: “Failure to report the multiple sales of rifles or submission untimely on
    [REDACTION]. Dkt. 17-7 at 11. And yet another notes: “While reviewing the licensee’s
    records it was discovered that the licensee failed on [REDACTED] occasions to timely report a
    Multiple Sale or Other Disposition of Pistols and Revolvers on an ATF F3310.4 [REDACTED]
    firearms.” Dkt. 17-7 at 49.
    When combined with the declarations the ATF has filed in support of its motion, the
    Court can reasonably discern the nature of some—but not all—of the redactions. From the Kil
    Declaration and the text of many of the redacted records, the Court understands that the ATF
    redacted information derived from records that licensees were required to maintain under 
    18 U.S.C. § 923
    (g) regarding the “number of times each [regulatory] violation occurred.” Dkt. 16-2
    at 7 (Kil Decl. ¶ 19). The Second Chisholm Declaration further explains the ATF’s redaction
    policy with the following examples:
    For example, an FFL [Federal Firearms Licensee] may have a violation for
    incorrectly filling out an ATF Form required by Federal law. An ATF’s Industry
    Operations Investigator (IOI) analyzing the Form will document how many
    instances a specific FFL made a particular error and notate that on the Firearms
    Inspection Report. . . . That general conclusion—that there is an error in filling
    out ATF Form 4473 or other required records—is released under FOIA. ATF
    does not release, however, the fact that a particular FFL made this same type of
    error a specific number of times. For example, the information that a specific
    FFL filled out ten ATF Forms with the same error is information derived solely
    from the statutorily required information.
    . . . . In addition, IOI’s often transcribe specific information directly from these
    forms into the Firearms Inspection Reports. This may include information about
    the purchaser or the firearm purchased. All of this, either the aggregate numbers
    for a specific FFL or the specific information from a specific FFL,[ ]is derived
    21
    directly from “information required to be kept by licensees pursuant to section
    923(g) of title 18, United States Code, or required to be reported pursuant to
    paragraphs (3) and (7) of such section.”
    [In addition,] portions of the records were redacted as a result of information
    being obtained directly from eTrace, also known as the Firearms Trace System
    Datasbase (FTS). eTrace or FTS data is routinely utilized by IOIs to gain insight
    into how many firearms traces or multiple sales have originated from a particular
    FFL.
    Dkt. 22-2 at 9–11 (Second Chisholm Decl. ¶¶14–17).
    Based on this evidence and the parties’ description of the issue that they have briefed for
    decision, the Court will address—in general—whether the ATF permissibly “redacted the
    number of times a licensee committed a particular [regulatory] violation.” Dkt. 24 at 21. But,
    the Court leaves for another day the determination whether each particular redaction of the
    number of violations was proper; the determination whether the ATF permissibly redacted any
    other information pursuant to the Tiahrt Rider and FOIA Exemption 3; and resolution of any
    dispute regarding which of the redactions at issue fall within that category. Before the Court can
    address these additional questions, the Court will require greater detail—including either a
    detailed Vaughn Index or a declaration that addresses the redactions on a document-by-document
    basis, as well as further briefing by the parties. The Court may also, if appropriate, require that
    the ATF provide the Court with unredacted versions of the relevant records for ex parte, in
    camera review. See 
    5 U.S.C. § 552
    (a)(4)(B) (providing courts the authority to review withheld
    or redacted agency records “in camera” as part of its de novo review of those withholdings).
    2.      Application of the Tiahrt Rider to the Number of Violations Noted
    In addition to challenging the adequacy of the ATF’s description of the redactions at
    issue, the Brady Center challenges the ATF’s view that the Tiahrt Rider bars disclosure of the
    22
    number of violations noted in the firearms inspection reports. 3 The Brady Center first argues
    that the ATF’s decision to release information relating to the nature of the regulatory violation is
    inconsistent with its decision to withhold information reflecting the number of violations. Dkt.
    24 at 22–23. As a result, the Brady Center contends that ATF’s redaction policy is “arbitrary,”
    
    id. at 23
    ; that the ATF has applied its disclosure “policy in an inconsistent and selective manner,”
    id.; that the ATF “concocted [a] post hoc litigation position,” 
    id.
     (emphasis added), and that the
    ATF cannot “rely on an undisclosed policy to justify its withholding,” 
    id. at 24
    . Each of these
    arguments sounds in the requirements of the Administrative Procedure Act (“APA”), 
    5 U.S.C. § 701
     et seq., that an agency engage in reasoned decision-making, see, e.g., Motor Vehicle Mfrs.
    Ass’n of U.S., Inc. v. State Farm Mut. Auto. Ins. Co., 
    463 U.S. 29
    , 52–53 (1983), and that the
    agency defend its position based solely on the administrative record, see, e.g., Sec. & Exch.
    Comm’n v. Chenery Corp., 
    318 U.S. 80
    , 87 (1943). The problem is that the Brady Center has
    brought a FOIA case, not an APA case, and the Brady Center does not cite a single case applying
    the APA’s arbitrary and capricious standard to the FOIA. Nor is the Court aware of any such
    3
    Although neither the Brady Center’s motion for partial summary judgment nor its opposition
    to the ATF’s motion disputes the premise that the Tiahrt Rider constitutes a statute that
    specifically exempts records from disclosure for purposes of FOIA Exemption 3, see Dkt. 22 at
    25 (“[P]laintiff does not dispute that the [Tiahrt Rider] qualifies as an Exemption 3 statute”), it
    recently filed a Notice of Supplement Authority directing the Court’s attention to a decision from
    the United States District Court for the Southern District of New York holding that the Tiahrt
    Rider lacks the express reference to Exemption 3 required for statutes enacted after Congress
    adopted the OPEN FOIA Act of 2009. See Dkt. 29 at 1–2 (citing Everytown for Gun Safety
    Support Fund, 
    2019 WL 3890220
    , at *5). In raising that argument for the first time in the Notice
    of Supplemental Authority, the Brady Center does not grapple with the cases from this district
    that have concluded that the Tiahrt Amendment qualifies as an Exemption 3 statute. See, e.g.,
    Abdeljabbar v. Bureau of Alcohol, Tobacco, Firearms & Explosives, 
    74 F. Supp. 3d 158
    , 176
    (D.D.C. 2014); Higgins v. U.S. Dep’t of Justice, 
    919 F. Supp. 2d 131
    , 145 (D.D.C. 2013). Given
    that the Brady Center only belatedly and cursorily raised the argument, the Court concludes that
    it is forfeited. See Kennedy-Jarvis v. Wells, 
    195 F. Supp. 3d 230
    , 238 n.4 (D.D.C. 2016) (finding
    an argument forfeited where it is “raised for the first time in a reply brief”).
    23
    principle. To the contrary, nothing in the FOIA precludes agencies from releasing exempt
    records, and nothing in the FOIA requires that the agency adopt a consistent policy. Unlike the
    APA, moreover, review in FOIA cases is de novo, 
    5 U.S.C. § 552
    (a)(4)(B), and the agency’s sole
    burden is to justify its withholdings based on the relevant facts and the exemptions specified in
    the statute, 
    id.
    The Brady Center also at least gestures at the contention that the Tiahrt Rider protects the
    reports licensees are required to keep or to submit pursuant to 
    18 U.S.C. § 923
    (g), but does not
    protect documents, like those at issue here, that contain information merely derived from the
    § 923(g) reports. To the extent the Brady Center makes that argument, it is unconvincing. The
    text of the Tiahrt Rider is clear: it prohibits the expenditure of appropriated funds “to disclose . .
    . any information required to be kept by licensees pursuant to [§ 923(g)] or required to be
    reported pursuant to paragraphs (3) and (6) of such section.” 125 Stat. at 609. The choice of the
    word “information,” as compared to “records” or “forms,” leaves little doubt that the Rider
    reaches derivative records. The modifier “any,” moreover, confirms that the Rider extends to
    documents that merely contain—and thus “disclose”—information that licensees are required to
    keep pursuant to 
    18 U.S.C. § 923
    (g). See United States v. Gonzalez, 
    520 U.S. 1
    , 5 (1997) (“Read
    naturally, the word ‘any’ has an expansive meaning, that is, ‘one or some indiscriminately of
    whatever kind’” (quoting Webster’s Third New International Dictionary 97 (1976))).
    The Brady Center also argues that the records at issue here are not covered by the Tiahrt
    Rider because they fall within the Rider’s exception for “aggregate statistical data.” Dkt. 17-2 at
    33–34. That exception provides that the Rider “shall not be construed to prevent: . . . the
    publication of . . . statistical aggregate data regarding firearms traffickers and trafficking
    channels, or firearms misuse, felons, and trafficking investigations.” 125 Stat. at 610. The
    24
    Brady Center’s argument depends on the unsupported, but uncontested, premise that all it must
    show to prove that the records fall within this exemption is that the data is “statistical aggregate
    data.” It is far from clear, however, that the records at issue here, which largely concern
    recordkeeping violations by licensed firearms dealers, are properly understood to reflect data
    “regarding firearms traffickers and trafficking channels, or firearms misuse, felons, and
    trafficking investigations.” Cf. Nat’l Shooting Sports Found., Inc. v. Jones, 
    840 F. Supp. 2d 310
    ,
    314 (D.D.C. 2012) (“Multiple purchases of firearms by a non-licensee provide a significant
    indicator of firearms trafficking.”)
    But, even putting that difficulty with the Brady Center’s argument aside, the text of the
    Tiahrt Rider does not support the Brady Center’s argument. First, the Court is unconvinced that
    the number of violations committed by a particular licensee constitutes “statistical aggregate
    data” for purposes of the Tiahrt Amendment’s exception. For one thing, the Rider speaks in the
    plural—it refers to “traffickers,” “trafficking channels,” and “trafficking investigations”—while
    the reports at issue here are, at least as far as the Court can tell, each about a single licensee.
    Moreover, it is far from clear that the number of violations of a particular type committed by a
    single licensee constitutes “statistical data”—the word “statistical” connotes the use of “the
    principles of statistics,” Statistical, Merriam-Webster Dictionary Online, available at
    https://www.merriam-webster.com/dictionary/statistical, and “statistics” is “a branch of
    mathematics dealing with the collection, analysis, interpretation, and presentation of masses of
    numerical data,” Statistics, Merriam-Webster Dictionary Online, available at
    https://www.merriam-webster.com/dictionary/statistics. There is no reason to conclude, for
    example, that the ATF investigators are measuring probabilities, deviations from the mean, or the
    relationship between data sets. But, even if the Court were to construe the phrase “statistical
    25
    data” liberally, reading the statutory phrase “aggregate statistical data” in the manner the Brady
    Center suggests would read the word “aggregate” entirely out of the statute. And, that, the Court
    may not do. See Obduskey v. McCarthey & Holthus LLP, 
    139 S. Ct. 1029
    , 1037 (2019)
    (“[Courts] generally presume[e] that statutes do not contain surplusage.” (quoting Arlington
    Central Sch. Dist. Bd. of Educ. v. Murphy, 
    548 U.S. 291
    . 299 n.1 (2006)).
    This, then, brings the Court to the ultimate question: whether ATF’s redactions of
    numbers of violations “disclos[e]” “any information required to be kept [or reported] pursuant to
    Section 923(g).” 125 Stat. at 609. The answer to that question, in turn, will require a redaction-
    by-redaction review of the records and, at least with respect to many redactions, will require
    further facts and further briefing by the parties. Upon review of the sample records and
    redactions the Brady Center has filed, however, the Court can conclude that at least some of the
    redactions are proper.
    Most clearly, a number of the redactions appear to omit information that the ATF
    obtained directly from the records subject to the Tiahrt Rider. The regulations implementing the
    record-keeping requirements § 923(g) provide that a “licensed dealer shall retain . . . each Form
    4473 obtained in the course of transferring custody of the firearm[].” 
    27 C.F.R. § 478.124
     (b).
    Form 4473, in turn, records each firearms transaction, including the name and residence of the
    purchaser, the type of firearm transferred (i.e., handgun, long gun, or other firearm), and whether
    a background check was performed. Those record-keeping requirements map neatly onto some
    of the redactions at issue. One record, for example, lists as a violation: “Transfer of a long gun
    to an out-of-state resident in violation of Indiana State Law [REDACTED] involving
    [REDACTED],” Dkt. 17-7 at 13. It is the Form 4473 that would have recorded the sale of “a
    long gun” and the residence of the purchaser. Another redacted report of a violation states:
    26
    “[t]he licensee failed on [REDACTED] occasions to timely report a Multiple Sale or Other
    Disposition of Pistols and Revolvers on an ATF F[orm ] 3310.4 [REDACTED] firearms.” Dkt.
    17-7 at 49 (emphasis added). Again, the Court can reasonably infer from the redaction and from
    the ATF’s declaration that the ATF determined the number of sales from examining the relevant
    Forms 4473. The Court can also conclude, more generally, the ATF has permissibly redacted
    information that was derived directly from the Forms 4473 or like forms, that it reviewed in the
    course of the relevant inspections. It is premature, however, to decide which of the many
    redactions at issue fall into this category.
    A second set of sample records—and, indeed, the largest set of redactions—poses a more
    difficult question, which is not addressed in any detail in the parties’ briefs: whether a finding
    that the licensee or purchaser failed to include required information on a Form 4473 or like
    report, or failed to create and maintain the required report, constitutes “information required to
    be kept by licensees pursuant to section 923(g).” 125 Stat. at 609. One can imagine a number of
    possible responses to this question. One might argue, for example, that the absence of
    information is not information. Alternatively, one might argue that the absence of at least certain
    information reveals information that the licensee is required to maintain by virtue of § 923(g). A
    “[f]ailure by licensee to date the ATF Form 4473” or the number of occasions the licensee failed
    to complete “questions 34 and/or 36” on Form 4473 or “incorrect[ly]” answered those questions,
    see Dkt. 17-8 at 20, at least indirectly reveals information that the firearms dealer did maintain
    pursuant to § 923(g)—that is, licensees are required to maintain a Form 4473 for each
    transaction, and the existence of the Form 4473, even if incompletely or incorrectly completed,
    discloses the existence of the sale, as documented in the Form 4473. Or, one might even argue
    that the Rider, read literally, applies to information the licensee is “required to” keep, even if it
    27
    fails to do so. Resolution of the question whether each redaction of a failure-to-report violation
    requires resolution of these legal questions and, even more importantly, will likely turn on
    context.
    Finally, the sample redactions reveal other occasions where the Court cannot, on the
    present record, reasonably discern whether the information at issue came from a Form 4473, a
    similar form subject to § 923(g), the eTrace database, a combination of these sources, or some
    other source. The existing record, accordingly, leaves the Court with an information deficit on
    two different fronts. First, the Court has little guidance from either party about how broadly it
    should understand the Rider’s prohibition on “disclosure” to sweep—or even how it should
    answer that question. Second, without the Vaughn index or a detailed declaration, the Court
    cannot determine how much of an inferential or investigative step would be needed to take a
    particular piece of redacted information and trace it back to particular “information required to
    be kept by licensees pursuant to section 923(g)” or to information gleaned from the eTrace
    database.
    As a result, the Brady Center is correct that the Court cannot, on the existing record,
    resolve the parties’ pending cross-motions for summary judgment with respect to the ATF’s
    reliance on FOIA Exemption 3 and the Tiahrt Rider. The ATF, moreover, is still producing
    records, which may contain additional types of reports of violations that confound the question
    even further. The Court will, accordingly, deny both parties motions for summary judgment
    with respect to the relevant redactions, without prejudice. Insofar as the parties cannot reach
    agreement as to the scope of ATF’s redactions under Exemption 3, the parties may renew their
    motions after the ATF prepares a detailed Vaughn index or the equivalent, which, among other
    things, explains whether and to what extent the purported disclosure of § 923(g) information is
    28
    inferential or direct, as well as which specific recordkeeping requirements preclude the release of
    the redacted information.
    CONCLUSION
    For the foregoing reasons, Defendants’ motion for partial summary judgment, Dkt. 16,
    and Plaintiff’s cross-motion for partial summary judgment, Dkt. 17, are both hereby GRANTED
    in part DENIED in part.
    SO ORDERED.
    /s/ Randolph D. Moss
    RANDOLPH D. MOSS
    United States District Judge
    Date: September 28, 2019
    29