The World's Jeb Sharp interviews Pulitzer prize-winning author Tracy Kidder. Kidder's new book is called Strength in What Remains. It tells the story of Deo, a young man who survives the civil war in his native Burundi in central Africa. Kidder follows Deo's story from war-torn Burundi, to New York City, and back again. To hear the entire audio interview, please click here.