What does Obama’s historic visit mean for Cuba and the U.S.?

Aired: 2/18/2016 | 0:07:00 | Clip
President Obama will be the first sitting U.S. president to visit Cuba since Calvin Coolidge, according to a Twitter announcement Thursday. Chief foreign affairs correspondent Margaret Warner reports on the latest in a series of moves to normalize relations with the Communist state, and Judy Woodruff talks with William LeoGrande of American University for more on the implications.