Kerry threatens to quit Iran nuke talks after more delays
US Secretary of State John Kerry threatened Thursday to walk away from nuclear talks as he signaled that diplomats won't conclude an agreement over the coming hours - another delay that this time could complicate American efforts to quickly implement any deal.
"This is not open-ended," Kerry told reporters outside the 19th-century Viennese palace hosting the negotiations. "We can't wait forever for the decision to be made. If the tough decisions don't get made, we are absolutely prepared to call an end to this process."
