From KGB spy to 'American Dream'
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From KGB spy to 'American Dream'

Jack Barsky was born Albrecht Dittrich. He came to the US from East Germany in the 1970s. But he was a Soviet spy all along.

He tells the BBC what it was like to live a double life and why, if world leaders do not trust their own intelligence agencies, they are in trouble.

Video by Olivia Lace-Evans

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