MI5 documents reveal her private secretary ‘saw no advantage in telling her’ about treachery of Buckingham Palace art expert ...

Five Cambridge University graduates served as double agents, leaking highly classified information to the Soviet Union ...

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents ...

Queen Elizabeth II was not told about her long-time art adviser's double life as a Soviet spy, newly declassified documents ...

Newly-declassified files show notorious double agent refused ‘insane’ order to follow fellow spies Burgess and Maclean to ...

Top secret MI5 files detailing first-hand accounts of confessions of three of Britain's most notorious double agents ...

MI5 reveals confessions of three members of infamous Cambridge Five spy ring as tranche of documents released into National ...

Newly declassified British documents show that Queen Elizabeth II wasn’t told details of her long-time art adviser’s double ...

Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not ...