Louise Hulland on BBC Radio Cambridgeshire - The Past Masters: Cambridge spy ring - BBC Sounds
Sean Lang joins Louise in the studio to delve into the history of the Cambridge spy ring.
civilserviceworld.com9h
The civil servant who spied for the Soviet Union for 15 years – MI5 files declassified
The National Archives has released declassified MI5 files, including the confession of a civil servant who worked in the ...