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The Evolution of British Sigint: 1653–1939. HMSO. ASIN B002ALSXTC. Winterbotham, F. W. (1974), The Ultra Secret, New York: Harper & Row, ISBN 978-0-06-014678-8 The first published account of the previously secret wartime operation, concentrating mainly on the distribution of intelligence. It was written from memory and has been shown by ...
Before its current name, the CIA headquarters was formally unnamed. [3] On April 26, 1999, [4] the complex was officially named in the Intelligence Authorization Act for Fiscal Year 1999 for George H. W. Bush, [2] who had served as the Director of Central Intelligence for 357 days (between January 30, 1976, and January 20, 1977) and later as the 41st president of the United States.
Work on a new building began in 1972 and all operations had been transferred from the "bunker" to the new building by 1974. [2] Following the fall of the Iron Curtain in the early 1990s, the role of Sigint in the UK became less important, and the functions of both GCHQ Cheadle and GCHQ Culmhead were transferred to Scarborough in 1995 and 1998 ...
The Shadow Warriors: OSS and the Origins of the CIA (New York: Basic, 1983) ISBN 0465077560; Smith, Richard Harris. OSS: The Secret History of America's First Central Intelligence Agency (Berkeley: University of California Press, 1972; Guilford, CT: Lyons Press, 2005) ISBN 0520020235; Steury, Donald P. The Intelligence War (New York: Metrobooks ...
The Intelligence Services Act 1994 formalised the activities of the intelligence agencies for the first time, defining their purpose, and the British Parliament's Intelligence and Security Committee was given a remit to examine the expenditure, administration and policy of the three intelligence agencies. [43]
MI5 (Military Intelligence, Section 5), [2] officially the Security Service, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI).
In the early 1960s, developments occurred which appear to have prompted the establishment of the facility now known as GCHQ Bude. In 1962, a satellite receiving station for the commercial communication satellites of Intelsat was established at Goonhilly Downs, just over 60 miles (100 kilometres) south-southwest of Morwenstow.
The Secret Intelligence Service (SIS), commonly known as MI6 (Military Intelligence, Section 6), is the foreign intelligence service of the United Kingdom, tasked mainly with the covert overseas collection and analysis of human intelligence on foreign nationals in support of its Five Eyes partners.