In July 2014 Washington Post Iran correspondent Jason Rezaian was on the brink of a two-month sabbatical in the US with his wife Yeganeh when his Tehran home was raided by police. A gun was pointed at his head, he was arrested and accused of spying. Yeganeh, who is Iranian, was released after two months, but Rezaian was held in Iran's notorious Evin Prison for 544 days, including a period of solitary confinement. Now back at the Washington Post, Rezaian has written about his imprisonment in his memoir, Prisoner. On today's podcast he talks to Chris about what kept him going throughout the torture and interrogations at Evin, the role of the Obama administration in his eventual release and why he will one day go back to Iran.

Prisoner, by Jason Rezaian, published by Harper-Collins, is out now.