An insight into Osama bin Laden's life through the eyes of people who knew him and met him.
Norman Lamont, former British Chancellor of the Exchequer, on why he wants the UK to leave the European Union.
What is driving the story in Brazil, corruption or the media? Plus, how messaging apps are reshaping how news is shared.
Julio Docjar, a street artist from Sao Paulo, dreams of using his art as an instrument for social change.