Elizabeth Warren; Bernie Sanders (Credit: Getty/AP/Photo Montage by Salon) For three years now, bombs have fallen on thousands of innocent people in Yemen, and the United States military says it has no idea if any of the munitions are U.S.-made or if the Saudi-led coalition jets doing the bombing have been flying on fuel provided by the U.S. The deeply troubling disclosure came on Tuesday in a budget request hearing before the Senate Armed Services Committee, from the head of U.S.