What was it like to be a KGB spy in Britain at the height of the Cold War? Correspondent Gordon Corera, whose series on MI6 is being broadcast on Radio 4, talks to Mikhail Lyubimov, a colonel in the KGB, about why he was picked to recruit members of the Conservative Party in the UK.
MI6: A Century in the Shadows
is a three-part series for BBC Radio 4. The second episode, Heroes and Villains, will be broadcast on BBC Radio 4 on Monday 3 August at 0902 BST and 2130 BST. Or