An increase in internally displaced people in Africa

There are now 35 million people internally displaced across the continent, that's according to a recent report by the Internal Displacement Monitoring Centre. That's a threefold increase since 2009, when African governments signed a landmark deal legally binding countries to try and tackle the causes of displacement. So why is there an increase? Also, we'll hear from Leila Soueif, the Egyptian mother on hunger strike, protesting against the continued detention of her son, Alaa Abd el-FattahAnd we learn more about the origins of democracy through a system called dikgotla, in Botswana!Presenter: Audrey Brown Producers: Bella Hassan, Rob Wilson, Victor Sylver and Amie Liebowitz Technical Producer: Francesca Dunne Senior Journalist: Karnie Sharp Editors: Andre Lombard and Alice Muthengi