The United States set a March deadline on Thursday for Iran to start cooperating with a U.N. nuclear agency investigation, saying it would otherwise urge referring the issue to the U.N. Security Council. Comments by U.S. diplomat Robert Wood to the governing board of the International Atomic Energy Agency (IAEA) in Vienna signaled Washington's growing frustration at a lack of results in the nuclear-monitoring agency's inquiry into possible military dimensions to the Iranian nuclear program. “If by March Iran has not begun substantive cooperation with the IAEA, the United States ... would urge the board to consider reporting this lack of progress to the U.N. Security Council," Wood said, according to a copy of his statement. “Iran cannot be allowed to indefinitely ignore its obligations. Iran must act now," he added.
