National Security Agency

The National Security Agency (NSA) is a U.S. government agency responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes. It operates under the Department of Defense and primarily focuses on signals intelligence (SIGINT) and information assurance. Established in 1952 by President Harry S. Truman, the NSA has played a critical role in national security, particularly in the realms of cryptography and cybersecurity. The agency generates revenue through government funding and contracts, and it has been involved in significant historical events, including the Cold War and the post-9/11 era, shaping its evolution and operational strategies.

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