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

But the cuts have gone even deeper. Under the new regime, intelligence officers working for both the Secret Service (MI5) and Secret Intelligence Service (MI6) have been told to expect more ...

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday ... for foreign intelligence agency MI6 despite falling under suspicion.

The difference between the two is that MI6 works within the UK while MI5 operates in other countries. “These agencies are full of people from everyday backgrounds doing the most extraordinary wo ...