### Foreign Intelligence Surveillance Act of 1978
Who / What
The Foreign Intelligence Surveillance Act of 1978 is a United States federal law establishing procedures for the physical and electronic surveillance and collection of "foreign intelligence information" between "foreign powers" and "agents of foreign powers" suspected of espionage or terrorism. It created the **Foreign Intelligence Surveillance Court (FISC)** to oversee requests for surveillance warrants against foreign spies inside the United States by federal law enforcement and intelligence agencies.
Background & History
FISA was enacted in response to revelations of widespread privacy abuses from congressional investigations in the mid-1970s, most notably the **Church Committee**, which uncovered that presidents had authorized surveillance of domestic political opponents. The law aimed to balance national security needs with civil liberties by creating a legal framework for foreign intelligence surveillance that required judicial oversight. Key milestones include significant amendments in 1994 (adding physical searches), 1998 (adding pen registers/trap & trace devices), 2001 (USA PATRIOT Act), and 2008 (FISA Amendments Act adding Section 702 for warrantless surveillance of non-U.S. persons abroad).
Why Notable
FISA fundamentally reformed U.S. intelligence gathering by establishing a unique secret court system to approve surveillance, creating a legal distinction between foreign intelligence and domestic law enforcement operations. Its Section 702 has become a critical tool for the U.S. intelligence community, generating intelligence used in numerous terrorism investigations and national security assessments. The act remains highly controversial, sparking ongoing debates about privacy rights, government surveillance powers, and the balance between security and liberty.
In the News
FISA's Section 702 has been frequently in the news as congressional authorization periodically expires, sparking heated debates between national security officials who argue for its necessity and privacy advocates who seek reforms. Recent legislative battles have focused on adding warrant requirements for searching U.S. person data collected under the program. The program's reauthorization remains a contentious issue in Washington, with significant implications for U.S. intelligence capabilities.
