After oil tanker incident, what's next for the U.S. and Iran

After two oil tankers near the strategically critical Strait of Hormuz were damaged Thursday, the U.S. said Iran was responsible. The UN, meanwhile, has called for an independent investigation. Judy Woodruff talks to Vali Nasr, a Middle East scholar and former State Department official, and Reuel Marc Gerecht, a former CIA operations officer in the Middle East, about this precarious situation.