Erik Larson discusses "In the Garden of Beasts: Love, Terror, and an American Family in Hitler's Berlin." Set on the cusp of World War II, "In the Garden of Beasts" follows American ambassador William E. Dodd and his family to Nazi Germany as they settle in the heart of Hitler's Berlin in a grand old house on the city's central park, the Tiergarten -- in literal translation, the Garden of Beasts. Larson is the author of the three New York Times bestsellers "The Devil in the White City," "Thunderstruck," and "Isaac's Storm."