Annual Statistical Transparency Report Regarding the Intelligence Community's Use of National Security Surveillance Authorities: Calendar Year 2020 [open pdf - 3MB]
From the Executive Summary: "Today, consistent with the 'Foreign Intelligence Surveillance Act of 1978' (FISA), as amended (codified in 50 U.S.C. § 1873(b)), and the Intelligence Community's (IC) 'Principles of Intelligence Transparency' [hyperlink], the government is releasing its 'eighth' annual 'Statistical Transparency Report Regarding the Intelligence Community Use of National Security Surveillance Authorities'. This transparency report provides statistics and contextual information concerning how the IC uses FISA and certain other national security authorities to accomplish its mission, describing the circumstances under which its national security activities are conducted and the rules that are designed to ensure compliance with the Constitution and laws of the United States. By providing statistics along with explanatory narratives, the report endeavors to add further context to other publicly released materials regarding the oversight framework, including oversight conducted by independent judicial and legislative entities, which collectively safeguards the civil liberties and privacy of United States person and non-U.S. person information."
Office of the Director of National Intelligence: https://www.dni.gov/