The United States will have to take a "hard look" at its options if a looming deadline to reach a nuclear deal with Iran is missed, a senior US official said Monday.
"I don't want to predict what the outcome will be," acting State Department spokeswoman Marie Harf said, asked what would happen if there is no agreement on the broad outlines of a deal by a Tuesday midnight deadline. An interim accord struck with Iran in November 2013 will however stay in place until June 30.