On Iran, former George W. Bush official calls for diplomacy

The strained relationship between the U.S. and Iran has worsened with Iran’s downing of an American surveillance drone. How serious is the incident, and how should the U.S. respond? Judy Woodruff talks to Stephen Hadley, who served as national security adviser under President George W. Bush, and Gerard Araud, former French ambassador to the U.S., to discuss the likelihood of a diplomatic solution.