Former prisoners recall Robben Island, Nelson Mandela [audio 45min]

Sue MacGregor goes to Johannesburg to reunite a group of former political prisoners who were incarcerated on Robben Island when Nelson Mandela was there throughout the 1960s and 70s. Robben Island was a world of chains and torture during South Africa's darkest apartheid years. But it also became a place where many of the country's future leaders learnt the skills which would later bring them to power. We hear the extraordinary stories of five former prisoners.