The newly-declassified documents include details about some of the UK's most notorious spies.
Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not ...
Recently declassified MI5 files have shed light on one of the most infamous chapters in Cold War espionage, revealing ...
Members of the spy ring in the 1930s spilled secrets to the Soviet Union from the heart of the U.K. intelligence establishment.
Though many apply, only a few have the skills and patience to make it as a “watcher” an MI5 training manual published for the ...
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