Mensa is an international organization for people with high IQs, with the acronym standing for 'Mensa International'. The Central Intelligence Agency (CIA) is a United States government agency responsible for providing intelligence to the President and Cabinet. The National Security Agency (NSA) is a U.S. intelligence agency responsible for global monitoring, collection, and processing of information and data for foreign intelligence and counterintelligence purposes. The Office of Strategic Services (OSS) was a wartime intelligence agency of the United States during World War II. All four organizations are examples of intelligence organizations.