Exclusive Obama Interview

President Obama speaks to the BBC about Iran, gay rights in Africa and his regrets over gun control. A behind the scenes glimpse of the perils of interviewing a president. The discovery of a historically important South African painting, found being used as a noticeboard in the kitchen of a London home.

(Photo: Barack Obama and the BBC's North America editor, Jon Sopel, walking in the Colonnade overlooking the White House rose garden)