U.S. officials are blaming Iran for an attack on Saudi Arabia, but President Trump seems to be lowering any expectations of a fierce U.S. response. The president told supporters in New Mexico that he is weighing his options, one day after tweeting that the U.S. is "locked and loaded." Sources tell CBS News many of the projectiles involved in the weekend attack were fired from Iranian territory. At least one missile passed through airspace over Kuwait, a U.S. ally. Weijia Jiang reports.