MI5 ’struggled’ with Soviet spies

“British intelligence could barely cope with the number of Soviet spies in the UK during the Cold War, according to an official history of MI5.

The book found that MI5 did not get to grips with Soviet espionage in Britain until the early 1970s.

The history was written by Professor Christopher Andrew, who insisted he was given complete access to MI5’s files.

The Defence Of The Realm also reveals numerous attempts by politicians to use MI5 for their own ends.

Prof Andrew said it was not until 1971, when 100 Soviet diplomats were expelled from Britain, that MI5 contained KGB and Soviet bloc intelligence activities in the UK. “

(Source: BBC NEWS | UK | MI5 ’struggled’ with Soviet spies)