Thomas P.M. Barnett talked about his book Great Powers:America and the World After Bush (Putnam Adult; February 5, 2009). He talked about the challenges and opportunities facing the United States in the world today and described what he thinks the world will look like in the future. He responded to audience members' questions. Thomas P.M. Barnett, columnist and contributing editor at Esquire Magazine, regularly serves as an adviser to the Pentagon, the State Department, and members of the intelligence community. He is the author of The Pentagon's New Map: War and Peace in the Twenty-First Century.