Executive Order 12333, signed on December 4, 1981 by U.S. President Ronald Reagan, was an executive order intended to extend powers and responsibilities of U.S. intelligence agencies and direct the leaders of U.S. federal agencies to co-operate fully with CIA requests for information. This executive order was titled United States Intelligence Activities.

The National Security Agency (NSA) is an intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes, specializing in a discipline known as signals intelligence (SIGINT). The NSA is also tasked with the protection of U.S. communications networks and information systems. The NSA relies on a variety of measures to accomplish its mission, the majority of which are clandestine. The NSA has roughly 32,000 employees.