MEMORANDUM OPINION
This case arises out of an October 9, 2012 Freedom of Information Act (“FOIA”) request submitted by plaintiff *49 Cause of Action, a non-profit organization, to the Internal Revenue Service (“IRS”). Compl. [Dkt. # 1] ¶ 7; Pl.’s Resp. to Def.’s Statement of Undisp. Material Facts [Dkt. #28] ¶1 (“Pl.’s SOF Resp.”). The IRS referred one portion of plaintiffs FOIA request to defendant, the Treasury Inspector General for Tax Administration (“TIG-TA”), and that part of the request is at issue here. 1 Pl.’s SOF Resp. ¶ 2. TIGTA is a component of the U.S. Department of the Treasury (“Treasury”), and its activities include the investigation of wrongdoing by IRS employees. Answer [Dkt. # 12] ¶ 4; Pl.’s SOF Resp. ¶ 8. The FOIA request referred to TIGTA sought “[a]ll documents ... pertaining to any investigation by [TIGTA] into the unauthorized disclosure of [26 U.S.C.] § 6103 ‘return information’ to anyone in the Executive Office of the President.” 2 Ex. 1 to Compl. [Dkt. # 1-1] at 2.
On November 30, 2012, TIGTA issued what is commonly called a Glomar response and informed plaintiff that it could neither admit nor deny the existence of any responsive records. Pl.’s SOF Resp. ¶ 4;
see also Wolf v. CIA,
STANDARD OF REVIEW
In a FOIA case, the district court reviews the agency’s action
de novo
and “the burden is on the agency to sustain its action.” 5 U.S.C. § 552(a)(4)(B);
accord Military Audit Project v. Casey,
On a motion for summary judgment, the Court “must view the evidence in the light most favorable to the nonmoving party, draw all reasonable inferences in his favor, and eschew making credibility determinations or weighing the evidence.”
Montgomery v. Chao,
ANALYSIS
FOIA requires government agencies to release records upon request in order to “ensure an informed citizenry, vital to the functioning of a democratic ' society, needed to check against corruption and to hold the governors accountable to the governed.”
NLRB v. Robbins Tire & Rubber Co.,
A Glomar response “is proper if the fact of the existence or nonexistence of agency records falls within a FOIA exemption.”
Wolf,
In this case, defendant contends that it cannot confirm or deny the existence of any records responsive to the relevant portion of plaintiffs FOIA request because that bare acknowledgement would compromise interests protected by Exemptions 3, 6, and 7(C). Mem. in Supp. of Def.’s Mot. for Summ. J. [Dkt. 17-1] at 1 (“Def.’s Mem.”). But the Court finds that defendant’s Glomar response is not justified by Exemption 3, and that defendant has waived its reliance on Exemptions 6 and 7(C) by officially acknowledging that records exist. Therefore, the case will be remanded to defendant for further action.
I. Exemption 3 does not justify defendant’s Glomar response because the existence of an investigation is not “return information.”
FOIA Exemption 3 authorizes agencies to withhold information that is “specifically exempted from disclosure by statute.” 5 U.S.C. §§ 552(b)(3)(A)(i), (b)(3)(B). Defendant invokes Exemption 3 by pointing to section 6103 of the Internal Revenue Code, which requires that tax “[r]eturns and return information” be kept confidential subject to certain exceptions.
See
26 U.S.C. § 6103(a). “That [section] 6103 is the sort of nondisclosure statute contemplated by FOIA exemption 3 is be
*51
yond dispute.”
Tax Analysts v. I.R.S.,
The “core purpose” of section 6103 is to “proteet[ ] taxpayer privacy.”
Id.
at 615. Congress provided a “deliberately sweeping” definition of “return information” in section 6103,
Landmark Legal Found. v. I.R.S.,
a taxpayer’s identity, the nature, source, or amount of his income, payments, receipts, deductions, exemptions, credits, assets, liabilities, net worth, tax liability, tax withheld, deficiencies, overassessments, or tax payments, whether the taxpayer’s return was, is being, or will be examined or subject to other investigation or processing, or any other data, received by, recorded by, prepared by, furnished to, or collected by the Secretary with respect to a return or with respect to the determination of the existence, or possible existence, of liability (or the amount thereof) of any person under this title for any tax, penalty, interest, fine, forfeiture, or other imposition, or offense....
26 U.S.C. § 6103(b)(2)(A).
Defendant contends that it cannot confirm or deny the existence of any records relating to investigations of unlawful disclosures of return information to anyone in the Executive Office of the President because whether an investigation exists is, itself, return information. Def.’s Mem. at 10. Defendant acknowledges that the FOIA request at issue here does not call for the disclosure of any taxpayer’s income, payment history, deductions, net worth, or liability. And the request does not call for information about whether a particular taxpayer’s return has been or will be examined or subject to investigation. So the question presented is whether this request calls for information that falls within the third clause of the definition that begins “or any. other data....” Defendant claims that the existence of the sort of investigation described in the request constitutes “data ... with respect to the determination of the existence, or possible existence of liability ... of any person under [Title 26] for any ... offense,” id. at 10-11, even though the request does not seek information about the liability of' any taxpayer for an offense related to his own taxes. Therefore, defendant argues that its Glomar response is justified under Exemption 3. Id.
There is no question that the definition of “return information” in section 6103 “reaches far beyond what the phrase ‘return information’ would normally conjure up.”
Landmark,
*52 A. The Court does not owe “Chevron” deference to defendant’s interpretation.
As an initial matter, the Court notes that it does not owe
Chevron
deference to TIGTA’s interpretation of the term “return information” because TIGTA did not “reach[] the interpretation asserted here in a notice-and-comment rulemaking, a formal agency adjudication, or in some other procedure meeting the prerequisites for
Chevron
deference.”
Landmark,
B. The mere existence of an investigation into unnamed parties does not constitute “return information” under section 6103.
The question presented in this case appears to be one of first impression: the parties have not cited, and the Court has not found, any binding authority that addresses the use of a Glomar response based on the claim that confirming the mere existence of records of an investigation into unnamed individuals for something other than an offense related to their liability as a taxpayer would reveal confidential “return information.”
3
Defendant contends that the existence of investigations of violations of section 6103 consti
*53
tutes “return information” because it is “data ... with respect to the determination of the existence, or possible existence, of liability ... of any person under this title for any ... offense.” Pl.’s Mem. at 9-10, quoting 26 U.S.C. § 6103(b)(2)(A). The Court is concerned that defendant stripped the provision of its meaning and not simply surplussage when it took its scissor to the statute. But at this juncture, the Court need only find that under D.C. Circuit precedent, the term “data” in section 6013 does not stretch so far as to cover an acknowledgement of the mere existence of the records sought here.
See Tax Analysts,
In
Tax Analysts,
the Court of Appeals considered whether the legal analyses and conclusions contained within certain IRS field memoranda constituted “return information” under section 6103.
Id.
at 612. The IRS claimed that these legal conclusions fell “within the catchall ‘other data’ ” provision of the statute at issue here.
Id.
The court found that it owed heightened deference to the IRS’s position under
Chevron,
4
,
but concluded that, “while the IRS’s interpretation of ‘data’ in [section 6103] [might] be linguistically possible,” it was not “a permissible construction of the statute in light of its structures and purposes.”
Id.
at 616. Noting that “data” is not limited to information that directly identifies a taxpayer, the court held that “data” within the context of 26 U.S.C. § 6103(b)(2)(A) is still information that is “unique to a particular taxpayer.”
Id,
at 614;
see also Church of Scientology of Cal. v. IRS,
The
Tax Analysts
opinion is instructive here.
6
At this stage of the case, the only question,is whether defendant must acknowledge if some records exist related to an unknown number of investigations into a particular set of unauthorized disclosures
*54
of tax return information: those made to unnamed individuals in the Executive Office of the President. This information is not “unique to a particular taxpayer” and it is not “return information,” as broadly defined as that term may be.
7
Defendant has therefore not carried its burden to “explain[ ] in as much detail as is possible the basis for its claim that it can be required neither to confirm nor to deny the existence of the requested records.”
See Phillippi
The Court further notes that defendant’s sealed pleading “only” relates to Exemptions-6 and 7(C), and that defendant states in the sealed pleading that it has “fully addressed” the Exemption 3 issues in its public filings. Since defendant’s arguments in its public materials are insufficient, the Court concludes that the information protected by defendant’s Glomar response is not “return information” under section 6103, and that defendant’s reliance on Exemption 3 is not justified.
C. TIGTA’s own actions undermine its broad claims.
The Court also observes that TIG-TA’s claim that the existence of an investigation constitutes “return information” is undermined by its own actions. TIGTA has repeatedly acknowledged that investigations into the unlawful disclosure of return information exist, both in public reports to Congress and in response to other FOIA requests by plaintiff. See Ex. 5 to PL’s Mem. [Dkt. #27-1] (two letters to U.S. Senators stating the number of investigations “involving potential violations of Title 26” that TIGTA had conducted in the past six months); Ex. 4 to PL’s Mem. [Dkt. # 27-1] at 13 (chart released by TIGTA to plaintiff in response to a FOIA request stating that TIGTA had closed 290 investigations into “unauthorized access to tax return information” in 2012). The fact that TIGTA has publicly announced that it has investigated unlawful disclosures of, or access to, that body of information protected by statute as “return information” strongly suggests that the fact of an investigation is not, itself, “return information.”
“As
Skidmore
deference looks in part to an agency’s consistency, this must count against” TIGTA’s claims about the definition of “return information.”
Landmark,
II. Although defendant properly invoked Exemption 7(C), it has waived reliance on Exemptions 7(C) and 6 by officially acknowledging the existence of an investigation.
Defendant also asserts that its Glomar response is justified by FOIA Exemptions 6 and 7(C).
See
Def.’s Mem. at 14. Exemption 6 shields from mandatory disclosure “personnel and medical files and similar files the disclosure of which would
*55
constitute a clearly unwarranted invasion of personal privacy.” 5 U.S.C. § 552(b)(6). Exemption 7(C) protects information that was (1) compiled for law enforcement purposes if (2) the disclosure “could reasonably be expected to constitute an unwarranted invasion of personal privacy.”
Id.
§ 552(b)(7)(C). Because Exemption 7(C) involves a lower threshold than the one set forth in Exemption 6, which requires a
“dearly
unwarranted invasion” of privacy, the Court will address Exemption 7 first.
See id.
§ 552(b)(6) '(emphasis added);
see also U.S. Dep’t of Justice v. Reporters Comm. for Freedom of Press,
A. The asserted privacy interest outweighs the public interest in disclosure and so Exemption 7(C) applies.
Plaintiff does not dispute that the records it seeks relate to defendant’s law enforcement functions. Pl.’s Mem. of P. & A. in Supp. of its Opp. to Def.’s Mot. for Summ. J. & in Supp. of its Cross-Mot. for Summ. J. [Dkt. # 23] at 17 (“Pl.’s Mem.”). Rather, plaintiff contends that defendant has not established a privacy interest sufficient to outweigh “the only public interest relevant for purposes of Exemption 7(C),” which is “ ‘the citizens’ right to be informed about what their government is up to.’ ”
See Davis v. U.S. Dep’t of Justice,
But Exemption 7(C) also “takes particular note of the ‘strong interest’ of individuals, whether they be suspects, witnesses, or investigators, ‘in not being associated unwarrantedly’ ” with law enforcement activity.
Dunkelberger v. Dep’t of Justice,
In this case, plaintiffs FOIA request does not name any individuals; rath *56 er, plaintiff seeks records relating to any investigations of unauthorized disclosures of section 6108 “return information” to “anyone in the Executive Office of the President.” Ex. 1 to Compl. at 2. But plaintiffs pleadings in this case, which are available on the public docket, do name an individual plaintiff .believes to have been investigated by defendant: the former Chairman of the Council of Economic Ad-visors, Austan Goolsbee. See Pl.’s Mem. at 5-9; Pl.’s Reply at 8-12. The Court must therefore consider the privacy interests of Mr. Goolsbee in the balance.
Plaintiff contends that “there is a significant public interest” in knowing “how TIGTA responds to allegations of Section 6103 violations by officials at the highest level of the Executive Branch.” Pl.’s Reply at 13. But allegations of government misconduct “ ‘are easy to allege and hard to disprove,’ [so] a requester ‘must produce evidence that would warrant a belief by a reasonable person that the alleged Government impropriety might have occurred.’ ”
Judicial Watch, Inc. v. U.S. Dep’t of Justice,
At the same time, any unnamed individuals who may have been investigated lack a privacy interest in the disclosure of the mere fact of the existence of records of investigations in general. But Mr. Gools-bee’s significant privacy interest outweighs the public interest asserted by plaintiff. Any confirmation of the existence of the investigatory records that plaintiff seeks would certainly “ ‘engender comment and speculation and carr[y] a stigmatizing connotation’ ” as to Mr. Goolsbee.
See PETA
B. Defendant has waived its Glomar ■ response by officially acknowledging the existence of an investigation.
But the Court cannot sustain defendant’s Glomar response because defendant has waived the protections of Exemption 7(C) by officially acknowledging the existence of an investigation into Mr. Goolsbee on the public record.
8
See Am. Civil Liberties Union v. U.S. Dep’t of Def.,
In 2010, Mr. Goolsbee made a statement during a press conference that led some to be concerned that he had “improperly accessed and disclosed” the confidential return information of a taxpayer, Koch Industries, Inc. Ex. 1 to Pl.’s Mem. [Dkt. #27-1] at 1-2 (letter from -U.S. Senators to the Treasury Inspector General for Tax Administration expressing concern and requesting a review). On September 28, 2010, the Inspector General for Tax Administration sent a letter to several U.S. Senators stating that he would commence a “review” into Mr. Goolsbee’s comment. Ex. 2 to Pl.’s Mem. [Dkt. #27-rl] at 1. And on August 10, 2011, a TIGTA Special Agent sent an email to the Chief Legal Counsel of Koch Industries, stating that “the final report relative to the investigation of Austan Goolsbee’s press conference remark is completed, has gone through all the approval processes, and would now be available through a [FOIA] request.” Ex. 3 to Pl.’s Mem. [Dkt. 27-1].
The Court finds that even if the Inspector General’s letter to the Senators was not alone sufficient to constitute a waiver, the letter combined with the email supplies official confirmation of the existence of responsive records — the one fact that the Glomar response was intended to withhold. In the letter, the Inspector General confirmed publicly that the agency was looking into the matters raised by the Senators, but he said that he would “review” the allegations, and did not use the word “investigate.”
See
Ex. 2 to PL’s Mem. at 1. Given the difference between the words “review” and “investigate” when the conduct at issue is potentially criminal, one could conclude that the information in the letter does not precisely “match the information” sought in the FOIA request.
See Am. Civil Liberties Union,
But the email from the TIGTA Special Agent fills in the gap. It expressly confirms the existence of records about an investigation that meets all of the parameters of plaintiffs FOIA request. Defendant does not dispute the authenticity of the email, nor does it claim that the email was unauthorized or unofficial. Rather, it contends that the Court should disregard the email because “disclosures in the course of investigations and criminal cases do not waive an agency’s FOIA Exemptions.” Def.’s Reply at 12. But defendant does not claim that the Special Agent’s email was actually sent “in the course of’ an investigation or a criminal case, nor could it; indeed, on its face, the email confirms that an investigation has concluded.
Defendant offers no other argument as to why this email is not an official acknowl-edgement of the existence of an investigation into Mr. Goolsbee’s comment, and so the Court finds that defendant has waived its ability to assert a Glomar response to protect the privacy of Mr. Goolsbee.
See Wolf,
CONCLUSION
The Court finds that the fact of the existence of any records within the category of records that plaintiff seeks is not confidential “return information” under section 6103 of the Internal Revenue Code, and so defendant’s Glomar response is not supported by FOIA Exemption 3. Furthermore, although the existence of some records might be a fact protected by FOIA Exemption 7(C), the Court finds that defendant has waived reliance on both Exemption 7(C) and Exemption 6 by officially acknowledging its investigation into questions raised by the public statements of a particular administration official, and by failing to offer any other basis that would support a Glomar response on those grounds. Therefore, defendant’s motion for summary judgment will be denied, and plaintiffs cross-motion for summary judgment will be granted. The Court will remand the case to the agency for further action consistent with this opinion. A separate order will issue.
Notes
. The remainder of plaintiff’s request is the subject of a different case pending before this Court: Cause of Action v. I.R.S., No. 13-cv-0920 (D.D.C. filed June 19, 2013).
. It is a criminal offense for "any officer or employee of the United States ... willfully to disclose to any person ... any return or return information (as defined by section 6103(b).” 26 U.S.C. § 7213(a)(1). It is also a criminal offense for "any officer or employee of the United States ... willfully to inspect ... any return or return information acquired by such person or another person” under other provisions of the title. 26 U.S.C. § 7213A(a)(1)(A), (a)(2) (2012).
. The parties have directed the Court to two out-of-circuit cases.
See Hull v. I.R.S.,
In
Leonard,
the court held, that the IRS’s Glomar response was inappropriate where a FOIA requester sought “whistleblower” forms bearing his own name that had been filed with the IRS.
Leonard,
. The court did not explain why it applied
Chevron
deference in that casé, and based upon more recent binding authority, the Court concludes that it does not apply here.
See Landmark,
. The Court further notes thát that "data” in section 6103 can encompass information that is specific to an individual taxpayer, even when that person is a third party.
See, e.g., Landmark,
. Defendant posits that there is a vague "risk” that revealing the existence of the records plaintiff seeks would confirm that those records are "unique to a particular taxpayer.” Def.’s Mem. at 13. But any risk of that happening is minimal, since the Executive Office of the President has nearly 2,000 employees, and the mere revelation that an undisclosed number of records exists would not link those records to any specific person or people.' See Ex. 8 to PL's Mot. at 27 (table indicating that, in 2010, the Executive Office of the President employed 1,965 people).
.In
Landmark,
the D.C. Circuit characterized the holding of
Tax Analysts
as limited to the narrow proposition that section 6103 did not cover the particular field memoranda at issue in that case.
. This waiver applies equally to defendant's claims under Exemption 6, and so the Court will not address those arguments here. The parties dispute whether section 6103 is subject to waiver, but the Court need not reach that issue because it'has already determined that the information defendant seeks to protect through its Glomar response does not constitute "return information.”
