Zarif: Not confident we can avoid a war

Iranian Foreign Minister Mohammad Javad Zarif says he's "not confident that we can avoid a war" but stressed that Iran will not be the one to start a war.

"I'm not confident that we can avoid a war. I'm confident that we will not start one," Zarif said in an interview with CBS' "Face the Nation" which will air on Sunday and of which excerpts were made public on Saturday night.