On This Week’s Episode:

For years, Majid believed that if he could testify in court about what happened to him when he was held in a secret C.I.A. detention center known as a black site, a judge and jury would give him a break. Finally, he got a chance to see if he was right.

This is episode 8 of “Serial” season 4, a history of the Guantánamo Bay prison camp told by people who lived through key moments in its evolution.

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