美国及其盟友周一宣布对伊朗实施联合制裁。美国白宫国家安全顾问汤姆·多尼隆星期二在布鲁金斯学会发表讲话时指出，伊朗正在发展核武器能力是“不可否认的”，制裁是有用的。迈克·舒斯特，NPR驻外记者报道。
The U.S. and its allies announced coordinated sanctions against Iran on Monday. In a speech at the Brookings Institution Tuesday, White House national security adviser Tom Donilon argued that it is "undeniable" that Iran is developing a nuclear weapons capability, and that sanctions are working. Mike Shuster, foreign correspondent, NPR