The newly-declassified documents include details about some of the UK's most notorious spies.

More than 100 Security Service (MI5) files have been released by the National Archives ... They were all graduates of ...

Blunt was recruited by MI5 during World War II but the secret services became suspicious of him after Guy Burgess and Donald ...

Secret UK Files Detailing Confessions of Cambridge Five Spies Released By Michael Holden LONDON (Reuters) - Top secret MI5 ...

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by ...

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

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

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

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

More than 100 Security Service (MI5) files have been released by ... They were all graduates of Cambridge University who were recruited by Soviet Intelligence during the 1930s to serve as double ...

Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials ...

Historian Christopher Andrew says in the official history of MI5 that the queen had previously ... They shed new light on a spy ring linked to Cambridge University in the 1930s, whose members ...