Agent Sonya: The Soviet spy who came in from the Cotswolds
She was a top Soviet spy and a colonel in the Red Army, who had plotted to kill Hitler and sent secrets from the British atomic bomb programme to Stalin. So how did Agent Sonya - or Mrs Burton to her neighbours - evade MI5 for so long?
Ben Macintyre, associate editor and columnist, The Times, and author of Agent Sonya: Lover, Mother, Soldier, Spy.
Rosa Ellis, interactive journalist, The Times and The Sunday Times.
Host: David Aaronovitch.
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