OPINION

ROSEMARY M. COLLYER, United States District Judge

Plaintiff Electronic Frontier Foundation seeks the production of an opinion of the Foreign Intelligence Surveillance Court under the Freedom of Information Act. The document is exempt from disclosure under Exemptions 1 and 3 because the opinion is properly classified and because its disclosure is prohibited by statute. Summary judgment will be entered in favor of the Department of Justice.

I. FACTS

Electronic Frontier Foundation (EFF) is a non-profit corporation whose mission is to inform policymakers and the public about civil liberty issues related to technology and to defend such liberties. Compl. [Dkt. 1] ¶ 4. "In support of its mission, EFF uses the Freedom of Information Act to obtain and disseminate information concerning the activities of federal agencies." Id. EFF submitted four requests under the Freedom of Information Act (FOIA), 5 U.S.C. § 552, to the National Security Division of the Department of Justice (DOJ):

DOJ granted EFF's request for expedited processing on April 10, 2014,1 and EFF filed this suit on May 1, 2014. DOJ produced various documents, and EFF withdrew most of its requests. At this point, EFF challenges only the withholding of a single document — a specific FISC opinion.2

The opinion in question, referred to here as the Section 1809 Opinion, held that 50 U.S.C. § 1809(a)(2) precluded the FISC from approving the Government's proposed use of certain data acquired by the National Security Agency (NSA) without statutory authority through "Upstream" collection.3 EFF is aware of the holding of the Section 1809 Opinion because it was referenced in an October 3, 2011 FISC opinion4 that was released to EFF in the course of a different FOIA lawsuit — Electronic Frontier Foundation v. DOJ, 57 F.Supp.3d 54 (D.D.C.2014). In that FOIA suit, Judge Amy Berman Jackson held that DOJ properly withheld the citation to the Section 1809 Opinion because the information was classified and exempt from disclosure under FOIA Exemption 1. Id. at 61.

DOJ seeks summary judgment on the ground that the Section 1809 Opinion is subject to withholding under Exemptions 1 and 3. See Mot. for Summ. J. [Dkt. 15](MSJ); DOJ Reply [Dkt. 18]. EFF filed a cross motion for partial summary judgment. See Cross Mot. for Summ. J. [Dkt. 17] (XMSJ); EFF Reply [Dkt. 20].

II. LEGAL STANDARD

FOIA cases are typically and appropriately decided on motions for summary judgment. Miscavige v. IRS, 2 F.3d 366, 368 (11th Cir.1993); Moore v. Bush, 601 F.Supp.2d 6, 12 (D.D.C.2009). Federal Rule of Civil Procedure 56 provides that summary judgment must be granted when "the movant shows 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); Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 247, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986). Moreover, summary judgment is properly granted against a party who "after adequate time for discovery and upon motion... fails to make a showing sufficient to establish the existence of an element essential to that party's case, and on which that party will bear the burden of proof at trial." Celotex Corp. v. Catrett, 477 U.S. 317, 322, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986). In ruling on a motion for summary judgment, the court must draw all justifiable inferences in the nonmoving party's favor and accept the nonmoving party's evidence as true. Anderson, 477 U.S. at 255, 106 S.Ct. 2505. A nonmoving party, however, must establish more than "the mere existence of a scintilla of evidence" in support of its position. Id. at 252, 106 S.Ct. 2505.

In a FOIA case, the burden is on the agency to sustain its action and the district court must decide de novo whether an agency properly withheld information under a claimed exemption. 5 U.S.C. § 552(a)(4)(B); Military Audit Project v. Casey, 656 F.2d 724, 738 (D.C.Cir.1981); Mead Data Cent., Inc. v. Dep't of Air Force, 566 F.2d 242, 251 (D.C.Cir.1977). "The underlying facts are viewed in the light most favorable to the [FOIA] requester," Weisberg v. U.S. Dep't of Justice, 705 F.2d 1344, 1350 (D.C.Cir.1983), and the exemptions are narrowly construed, FBI v. Abramson, 456 U.S. 615, 630, 102 S.Ct. 2054, 72 L.Ed.2d 376 (1982). An agency must demonstrate that "each document that falls within the class requested either has been produced, is unidentifiable, or is wholly [or partially] exempt" from FOIA's requirements. Goland v. CIA, 607 F.2d 339, 352 (D.C.Cir.1978) (internal quotation marks and citation omitted).

A court may award summary judgment solely on the basis of information provided by the department or agency in affidavits describing "the documents and the justifications for nondisclosure with reasonably specific detail, demonstrate that the information withheld logically falls within the claimed exemption, and are not controverted by either contrary evidence in the record nor by evidence of agency bad faith." Military Audit Project, 656 F.2d at 738; see also Vaughn v. Rosen, 484 F.2d 820, 826-28 (D.C.Cir.1973). Affidavits submitted by the agency to demonstrate the adequacy of its response are presumed to be in good faith, Ground Saucer Watch, Inc. v. CIA, 692 F.2d 770, 771 (D.C.Cir.1981), "which cannot be rebutted by purely speculative claims about the existence and discoverability of other documents," SafeCard Servs. v. SEC, 926 F.2d 1197, 1200 (D.C.Cir.1991). "Ultimately, an agency's justification for invoking a FOIA exemption is sufficient if it appears `logical' or `plausible.'" Larson v. Dep't of State, 565 F.3d 857, 862 (D.C.Cir.2009) (quoting Wolf v. CIA, 473 F.3d 370, 374-75 (D.C.Cir.2007)).

III. ANALYSIS

A. Collateral Estoppel

DOJ contends that EFF should be collaterally estopped from seeking the release of the Section 1809 Opinion because EFF already litigated, and lost, prior FOIA requests for (1) docket information regarding the Section 1809 Opinion, see Electronic Frontier Foundation v. DOJ, 57 F.Supp.3d at 61, and (2) the identity of telecommunications service providers who participated in NSA's call records collection program, see Electronic Frontier Foundation v. DOJ, Case No. 4:11-cv-5221-YGR, 2014 WL 3945646, at *5-7 (N.D.Cal. Aug. 11, 2014). Under the doctrine of collateral estoppel, also known as issue preclusion, an issue of fact or law that was actually litigated and necessarily decided is conclusive in a subsequent action between the same parties or their privies. Allen v. McCurry, 449 U.S. 90, 94, 101 S.Ct. 411, 66 L.Ed.2d 308 (1980); Yamaha Corp. v. United States, 961 F.2d 245, 254 (D.C.Cir.1992); Johnson v. Duncan, 746 F.Supp.2d 163, 168 (D.D.C.2010). In this case, EFF seeks the release of the Section 1809 Opinion itself. Because the issue of DOJ's withholding the Section 1809 Opinion has not been actually litigated and necessarily decided, collateral estoppel does not apply.5

B. Exemption 1

Under Exemption 1, FOIA does not require the production of records that are: "(A) specifically authorized under criteria established by an Executive order to be kept secret in the interest of national defense or foreign policy and (B) are in fact properly classified pursuant to such Executive order." 5 U.S.C. § 552(b)(1). DOJ relies upon Executive Order 13526, 75 Fed.Reg. 707 (Dec. 29, 2009), which governs the classification and protection of national security information, to withhold the Section 1809 Opinion. Information can be properly classified under E.O. 13526 if four requirements are met: (1) an original classification authority has classified the information; (2) the United States Government owns, produces, or controls the information; (3) the information pertains to one or more of eight protected categories listed in Section 1.4 of the Executive Order, which include intelligence methods;6 and (4) the original classification authority determines that the unauthorized disclosure of the information reasonably could be expected to result in a specified level of damage to the national security, and the original classification authority is able to identify or describe the damage. E.O. 13526 § 1.1(a). David Sherman, Associate Director for Policy and Records at the National Security Agency, submitted declarations in support of DOJ's withholding of the Section 1809 Opinion. See Sherman Decl. [Dkt. 15-4]; Sherman Supp. Decl. [Dkt. 18-1]. Through these declarations, DOJ made an affirmative showing that (1) the Section 1809 Opinion was classified by an original classification authority, (2) the Opinion is owned, produced, or controlled by the U.S. Government, (3) the information pertains to three of the protected categories listed in Executive Order 13526 — intelligence methods, foreign activities, and systems related to national security; and (4) disclosure could reasonably be expected to result in damage to national security. See Sherman Decl. ¶¶ 2, 15, 46-47, 52. Mr. Sherman explained that DOJ withheld the Section 1809 Opinion in full under FOIA Exemption 1 "because the release of any portion of that document would tend to reveal information that is currently and properly classified at the Top Secret level, specifically, an intelligence method." Sherman Supp. Decl. ¶ 8. With regard to the fact that disclosure could be expected to result in damage to national security, Mr. Sherman indicated that:

Sherman Decl. ¶¶ 47, 52.

Through the Sherman Declarations,7 DOJ has sustained its burden of showing that the Section 1809 Opinion is classified and that it properly withheld the document under FOIA Exemption 1.8 See Larson, 565 F.3d at 865 ("If an agency's statements supporting exemption contain reasonable specificity of detail as to demonstrate that the withheld information logically falls within the claimed exemption and evidence in the record does not suggest otherwise, ... the court should not conduct a more detailed inquiry to test the agency's judgment and expertise or to evaluate whether the court agrees with the agency's opinions.").

EFF argues that while the Section 1809 Opinion was classified, it has been officially disclosed and thus it should be released. See Fitzgibbon v. CIA, 911 F.2d 755, 765 (D.C.Cir.1990) (official disclosure of classified information overcomes an otherwise valid exemption claim). EFF insists that DOJ cannot continue to withhold the Section 1809 Opinion in full because "it has already officially acknowledged and described the content of the Opinion." See Opp'n [Dkt. 16] at 8. The alleged official acknowledgement is the 2011 FISC opinion's statement of the Section 1809 Opinion's holding, i.e., that "Section 1809(a)(2) precluded the Court from approving the government's proposed use of, among other things, certain data acquired by NSA without statutory authority through its `Upstream collection.'" [Caption Redacted], 2011 WL 10945618, at *6 n. 15 (FISC Oct. 3, 2011).

Classified information may be disclosed over Government objection if the information has been "officially acknowledged," that is, if (1) the same (2) specific information (3) already has been "made public through an official and documented disclosure." Fitzgibbon, 911 F.2d at 765 (citing Afshar v. Dep't of State, 702 F.2d 1125, 1133 (D.C.Cir.1983)). "These criteria are important because they acknowledge the fact that in the arena of intelligence and foreign relations there can be a critical difference between official and unofficial disclosures." Id. The D.C. Circuit has emphasized that "`[p]rior disclosure of similar information does not suffice; instead, the specific information sought by the plaintiff must already be in the public domain by official disclosure. This insistence on exactitude recognizes the Government's vital interest in information relating to national security and foreign affairs.'" Am. Civil Liberties Union v. DoD, 628 F.3d 612, 621 (2011) (quoting Wolf, 473 F.3d at 378). Because the specific content of the Section 1809 Opinion has not been officially and publicly disclosed, the Opinion may be properly withheld under Exemption 1.

C. Segregability

Even if an agency properly withholds responsive records under a FOIA exemption, it nevertheless must disclose any non-exempt information that is "reasonably segregable." 5 U.S.C. § 552(b). "It has long been a rule in this Circuit that non-exempt portions of a document must be disclosed unless they are inextricably intertwined with exempt portions." Mead, 566 F.2d at 260; see also Trans-Pacific Policing Agreement v. United States Customs Serv., 177 F.3d 1022 (D.C.Cir.1999). A district court need not "order an agency to commit significant time and resources to the separation of disjointed words, phrases, or even sentences which taken separately or together have minimal or no information content." Mead, 566 F.2d at 261 n. 55. An agency cannot rely on mere conclusory statements that non-exempt material in a document is not reasonably segregable, but instead it must provide a reasonably detailed justification, except where "such a detailed justification... would itself compromise the secret nature of potentially exempt information." Id. at 261. Nonetheless, "[a]gencies are entitled to a presumption that they complied with the obligation to disclose reasonably segregable material." Sussman v. U.S. Marshals Serv., 494 F.3d 1106, 1117 (D.C.Cir.2007). A district court has "an affirmative obligation to consider segregability sua sponte." Trans-Pacific Policing Agreement, 177 F.3d at 1026.

EFF asserts that the legal analysis in the Section 1809 Opinion should be released because doing so would not implicate any legitimately withheld information. EFF surmises that the Section 1809 Opinion contains the following information that is not classified: FISC's legal analysis of Section 1809(a)(2)'s preclusive effect, the statutory authority governing NSA surveillance, and NSA's violation of that authority. See Opp'n at 9; see also id. at 10 (assuming that the Opinion contains "an analysis of the NSA's statutory authority and that authority's interaction with 50 U.S.C. § 1809"). EFF further hypothesizes that the Section 1809 Opinion contains information that was not properly classified.

EFF has not offered any support for these claims. The Court presumes that the Sherman affidavits were filed in good faith, see Ground Saucer Watch, 692 F.2d at 771, and this presumption is not rebutted by purely speculative claims, see SafeCard, 926 F.2d at 1200.

Further, EFF's argument is substantially undermined by the reality that legal analysis is meaningless without facts. Legal analysis necessarily includes facts, and in this case those facts are classified. As Mr. Sherman indicated, the withheld information would reveal specific details regarding the application and implementation of the "Upstream" collection capability and would reveal the specific means and methodology by which certain types of SIGINT collections are accomplished. Sherman Decl. ¶¶ 47, 52. Mr. Sherman stressed that "[i]n these circumstances, the disclosure of even seemingly mundane portions of this FISC opinion would reveal particular instances in which the `Upstream' collection program was used and could reasonably be expected to encourage sophisticated adversaries to adopt countermeasures that may deprive the United States of critical intelligence." Id. ¶ 52. See Larson, 565 F.3d at 864 ("Minor details of intelligence information may reveal more information than their apparent insignificance suggests because much like a piece of jigsaw puzzle, each detail may aid in piecing together other bits of information even when the individual piece is not of obvious importance itself.") (internal quotations and citations omitted).

Relying on the Sherman Declarations, the Court finds that disclosure of any part of the Section 1809 Opinion could reasonably be expected to cause grave damage to national security. The document has been properly withheld in its entirety under Exemption 1.

IV. CONCLUSION

For the reasons set forth above, the motion for summary judgment filed by the Department of Justice [Dkt. 15] will be granted, and the cross motion for partial summary judgment filed by the Electronic Frontier Foundation [Dkt. 17] will be denied. Judgment will be entered in favor of the Department of Justice. A memorializing Order accompanies this Opinion.