Statistical Transparency Report Regarding Use of National Security Authorities: Calendar Year 2017 [open pdf - 2MB]
"Today, consistent with the USA FREEDOM Act and the FISA Amendments Reauthorization Act of 2017 (the reauthorized FAA) requirements to release certain statistics (codified in 50 U.S.C. § 1873(b)) and the Intelligence Community's (IC) Principles of Intelligence Transparency, we are releasing our fifth annual 'Statistical Transparency Report Regarding Use of National Security Authorities' presenting statistics on how often the government uses certain national security authorities. Providing these statistics allows for an additional way to track the use of Foreign Intelligence Surveillance Act (FISA) authorities and gives further context to the IC's rigorous and multi-layered oversight framework that safeguards the privacy of United States person information acquired pursuant to FISA. The report goes beyond its statutory duty of providing statistics and further provides the public with detailed explanation as to how the IC uses these national security authorities."
Office of the Director of National Intelligence: https://www.dni.gov/index.php