How Lonnie Bunch plans to move the Smithsonian forward

Lonnie Bunch, founding director of the National Museum of African American History and Culture, has just become the 14th head of the Smithsonian Institution -- and its first black leader. He sits down with Judy Woodruff to discuss the challenges facing the world’s largest museum and research complex and why the Smithsonian is as much about today and tomorrow as it is about the past.