A new book by John Nagl, a retired American soldier, claims that extortionists and kidnappers in South Africa are helping fund terrorist groups in Congo and Mozambique. Nagl says that America’s Treasury having imposed sanctions on four people in South Africa accused of raising money and recruiting for Islamic State activities and branches across Africa, cast new light on the connections between IS’s core in Iraq and Syria and its growing networks in Africa. For more on this story, we spoke to Jasmine Opperman the director of Africa at the Terrorism Research and Analysis Consortium in South Africa.