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A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which are believed to be addressed to intelligence officers operating in foreign countries. [1] Most identified stations use speech synthesis to vocalize numbers, although digital modes such as phase-shift keying and frequency-shift keying , as well ...
[2] Events, such as the Pearl Harbor bombing, and the rise of Cold War tensions lead to the development of the CIA in 1947. [3] In the same year, the CIA, was made aware of a possible Russian mobilisation of Eastern Europe. [2] This was discovered by British intelligence services who provided the information to the US government. [2]
The Sprach-Morse Generator, the machine mistaken for a young girl speaking in German. Swedish Rhapsody was a Polish numbers station, operated by the Ministry of Public Security (later Office of State Protection and Foreign Intelligence Agency) that used AM broadcasting and operated between the late 1950s and 1998. [2]
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The military services formed a "Joint Operating Plan" to cover 1946-1949, but this had its disadvantages. The situation became a good deal more complex with the passage of the National Security Act of 1947, which created a separate Air Force and Central Intelligence Agency, as well as unifying the military services under a Secretary of Defense.
The Venona project was a United States counterintelligence program initiated during World War II by the United States Army's Signal Intelligence Service and later absorbed by the National Security Agency (NSA), that ran from February 1, 1943, until October 1, 1980. [1]
Two survivors of the bombing — each 100 or older — are planning to return to Pearl Harbor on Saturday to observe the 83rd anniversary of the attack that thrust the US into World War II.
OPC was preceded by the Special Procedures Group (SPG), whose creation in March 1948 [1] had been authorized in December 1947 with President Harry Truman's approval of the top-secret policy paper NSC 4-A. [2] SPG was located within the CIA's Office of Special Operations (OSO), the CIA department responsible for intelligence collection, and was first used to influence the Italian election of ...