Obama's World Tour

As Barack Obama’s trip to Afghanistan, the Middle East and Europe winds down, Josef Joffe, editor and publisher of Die Zeit, a weekly German newspaper, a fellow at the Hoover Institute and the author of Uberpower: The Imperial Temptation of America, then Rami Khouri, editor-at-large at The Daily Star in Lebanon, then Karen Tumulty, Time national poltical correspondent, discuss the trip.