Watch Adam Curtis: Bitter Lake (2015) Online

Politicians used to have the confidence to tell us stories that made sense of the chaos of world events. But now there are no big stories and politicians react randomly to every new crisis - leaving us bewildered and disorientated. Bitter Lake is a new, adventurous and epic film by Adam Curtis that explains why the big stories that politicians tell us have become so simplified that we can't really see the world any longer. The narrative goes all over the world, America, Britain, Russia and Saudi Arabia - but the country at the heart of it is Afghanistan.