Privacy and Civil Liberties Oversight Board Report on the Government’s Use of the Call Detail Records Program Under the USA Freedom Act Working to ensure that efforts by the Executive Branch to protect the nation from terrorism appropriately safeguard privacy and civil liberties. February 2020 Privacy and Civil Liberties Oversight Board • PCLOB.gov •
[email protected] TOP SECRET//SI//NOFORN Board Members Adam I. Klein, Chairman Jane E. Nitze Edward W. Felten Travis LeBlanc Aditya Bamzai TOP SECRET//SI//NOFORN TOP SECRET//SI//NOFORN Table of Contents (U) Executive Summary ................................................................................................................. 1 I. (U) Introduction ..................................................................................................................... 4 II. (U) NSA’s Collection of CDRs under the USA Freedom Act ............................................ 13 III. (U) Operational Use of the USA Freedom Act CDR Program ............................................ 25 IV. (U) Legal Analysis ............................................................................................................... 33 V. (U) Analysis of Privacy Risks.............................................................................................. 53 VI. (U) Statement of Chairman Adam Klein ............................................................................. 59 VII. (U) Statement of Board Members Ed Felten and Travis LeBlanc ....................................... 68 VIII. (U) Statement