A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

Spy bosses are hiring a real-life Q to develop gadgets for spooks and thwart terror attacks. The security service is ...

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The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain's National Archives. They shed new light on a spy ring linked to ...

LONDON (AP) — Queen Elizabeth II wasn’t told details of her long-time art adviser's double life as a Soviet spy because palace officials didn’t want to add to her worries, newly declassified ...

Historian Christopher Andrew says in the official history of MI5 that the queen had previously been told about Blunt in "general terms."Blunt was publicly unmasked as a spy by Prime Minister ...