Journalist Lee Randall talks to Lovemore Mazibuko, Acting Director at Museums of Chichiri, Malawi, and Dr Sarah Worden, Curator of African Collections at National Museums Scotland, about the life and legacy of David Livingstone. The free exhibition Dr Livingstone, I presume? which examines the achievements of and myths surrounding the famous Scottish missionary and explorer, runs at National Museum of Scotland until 7 April 2013. Find out more at www.nms.ac.uk/livingstone