Mullen: Iran has enough material to make nuclear weapon

Iran most likely has enough material necessary to make a nuclear weapon, Joint Chiefs of Staff chairman Adm. Mike Mullen said on Sunday. "We think they do, quite frankly," Mullen told CNN's John King on 'State of The Union'. "Iran having a nuclear weapon, I believe, for a long time, is a very, very bad outcome for the region and for the world."