When they last met they were on different sides of a cage door at the world's most notorious prison. Now a former guard at Guantanamo Bay has reunited with two of his former prisoners from Britain after he contacted them on Facebook.
Former guard Brandon Neely wanted to get back in touch with Shafiq Rasul and Ruhal Ahmed to apologize for his part in their imprisonment. The three then agreed to meet each other again for a BBC documentary. The BBC's Gavin Lee joins us to describe that encounter.