Some MI5 material relating to its involvement with a teenager who was charged with terrorism before she took her own life is being “withheld” from her inquest but is “not a cause for concern ...

MI5’s top interrogator was baffled by Kim Philby, admitting he could not determine whether he was a Soviet spy, according to newly declassified intelligence files. Jim Skardon, a former ...

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 ...