Former U.S. Defense Secretary Chuck Hagel discusses drone strike on al Qaeda leader

Former U.S. Defense Secretary Chuck Hagel discusses drone strike on al Qaeda leader

Former U.S. Defense Secretary Chuck Hagel discusses drone strike on al Qaeda leader

Al Qaeda leader Ayman al-Zawahiri was one of America’s most wanted terrorists. CBS News senior investigative correspondent Catherine Herridge reports on the U.S. drone strike that took him out. Then former U.S. Secretary of Defense Chuck Hagel joined CBS News’ Lana Zak to discuss the impact of the strike.