US says time ”very short” for Iran on nuclear deal

WASHINGTON: Iran faces a “very short” window to submit its formal response to a U.N.-brokered deal meant to allay suspicions that it seeks to develop nuclear weapons, the U.S. State Department said on Tuesday. “Frustration is mounting,” State Department spokesman Ian Kelly told a news briefing, noting that Tehran had still not made a formal reply to a proposal drafted by the International Atomic Energy Agency (IAEA) more than a month ago.