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TOP SECRET//SI//NOFORN




               two query terms of USA Freedom Act CDRs even though using an email address as a query term
                                                                     94
               in Tool 1 would never return USA Freedom Act CDRs.   (Those CDRs did not include email
                                                         95
               addresses or other unique online identifiers. )  As a result, the reported number of USA
               Freedom Act CDR query terms  included terms that, by their nature, could never have returned
                                              96
               those CDRs.

                       (U) Using Tool 1 for its operational benefits produced ancillary benefits for oversight and
               compliance.  The minimization procedures that apply to USA Freedom Act CDRs address the
                                                                                          97
               handling, retention, and dissemination of CDRs, but do not regulate querying.   Thus, NSA was
               not required to track—and did not need to have a particularized foreign intelligence justification
               for running—US person queries of CDR program data.  However, Tool 1 is designed to
               automatically require analysts to justify and track US person queries and requires a foreign
               intelligence purpose for each query run in order to comply with NSA’s other procedures.  Using
                                                                                                       98
               Tool 1 effectively imposed these requirements as a matter of practice on the CDR program.
                       (S//NF) When an analyst ran a query that returned CDRs, the analyst would naturally
               want to know additional information about the individuals involved, even to the point of
               identifying communicants if possible.  However,                                           with
               identifying information as they entered its repositories.  For example, it did not
                                                                                                      to the
               CDR produced by the provide


                            99   For example, an NSA analyst could have Tool 1 indicate whether any CDRs
               were associated with an NSA target of foreign-intelligence interest. 100   An NSA analyst could
               also ask Tool 1 to display certain                                 the contact in the query
               results,
                                                 101




               94  (U) NSA briefing to the Board (Mar. 26, 2019).

               95  (U) NSA briefing to the Board (Mar. 26, 2019).
               96  (U) Office of the Director of National Intelligence, Statistical Transparency Report Regarding the Use of National
               Security Authorities: Calendar Year 2018, 28 (Apr. 2019) (“2018 Statistical Transparency Report”),
               https://www.dni.gov/files/CLPT/documents/2019_ASTR_for_CY2018.pdf.
               97  (U) See NSA Minimization Procedures for CDRs.
               98  (U) NSA briefing to the Board (Mar. 26, 2019).
               99  (U) NSA briefing to the Board (May 23, 2019).
               100  (U) NSA briefing to the Board (May 23, 2019).

               101  (U) NSA briefing to the Board (May 23, 2019).

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