What to expect from fourth round of U.S., Iran nuclear talks

U.S. officials are set to meet with Iranian officials for talks in Oman this weekend. In an interview published on Friday, U.S. envoy to the Middle East Steve Witkoff said Iranians have told them they do not want a bomb. The U.S. is accepting their word, for now. CBS News senior national security correspondent Charlie D'Agata has more.