How to catch a Russian spy 'in plain sight'
Are you a fan of spy stories? American civilian Naveed Jamali always had been - and for three years, he actually lived one for himself.
In the mid-2000s, he was part of a counter-intelligence operation working against a Russian spy ring in New York. Pretending to be an ally to a Russian intelligence officer, he was actually providing information to the FBI.
His story is told in the new book How to Catch a Russian Spy.
He spoke to the BBC in New York City's Washington Square Park.
Produced by Sarah Svoboda, edited by Bill McKenna, filmed by James Cooke