The National Archives has released declassified MI5 files, including the confession of a civil servant who worked in the ...

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

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain ... whose members spilled secrets to the Soviet Union from the heart of ...

Britain’s National Archives on Tuesdayreleased declassified MI5 domestic counterintelligence agency files containing the confessions of notorious double agents known as the “Cambridge Five” who spied ...

British secret intelligence did not tell Queen Elizabeth II that her royal art adviser confessed to spying for the Soviet Union for almost a decade, according to newly released documents. The ...

14 (UPI) --Documents newly declassified by MI5, Britain's internal intelligence ... that a member of her staff had spied for the then-Soviet Union. The secret files record how the country's ...

marking the death of Soviet Union President Yuri Andropov. Classified documents released Tuesday by Britain's MI5 50 years on reveal the extent of communist-era espionage involving the country's ...

Historian Christopher Andrew says in the official history of MI5 that the queen had previously ... whose members spilled secrets to the Soviet Union from the heart of the U.K. intelligence ...

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday ... whose members spilled secrets to the Soviet Union from the heart of ...