New book reveals inside story of Oleg Lyalin, a KGB handler whose incompetent agents included one who let slip his identity
New book reveals inside story of Oleg Lyalin, a KGB handler whose incompetent agents included one who let slip his identity
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Exclusive: Operation Wedlock lasted up to 20 years and took MI5 teams across world amid panic about ‘another Philby’
Officer said he held himself responsible for accidentally phoning activist while in secret special branch meeting
Security Service admitted giving High Court incorrect testimony in attempt to stop BBC identifying covert agent
British security services allowed a top spy in the IRA to continue committing serious crimes, police report finds.
MI5 has also apologised after handing over previously undisclosed material on the agent that too late for it to be investigated…
National intelligence director blindsided agency by posting list of names stripped of security clearances
