Sarajevo, 28 June 1914: The story of the assassination that changed the world.

This is an attempt to catalogue the reasons why some wars are so difficult to stop - even when both sides want the fighting to end.

And, in Young Mandela, award-winning journalist and author David James Smith takes us deep into the heart of racist South Africa to paint a portrait of the Mandela that many have forgotten: the committed revolutionary who left his family ...