Iran weighs response after U.N. sanctions are reimposed over its nuclear program

DUBAI, United Arab Emirates — Iran weighed Sunday how to respond to reimposed United Nations sanctions over its atomic program, with one lawmaker suggesting parliament would consider potentially withdrawing from the Nuclear Nonproliferation Treaty. The sanctions again freeze Iranian assets abroad, halt arms deals with Tehran and penalize any development of Iran’s ballistic missile program, among other measures. Their return came via a mechanism known as “snapback,” included in Iran’s 2015