The Security Council's adoption of a new U.N. resolution to spur desperately needed aid to Gaza has been bogged down by two issues important to the United States: a reference to a cessation of hostilities and putting the U.N. in charge of inspecting trucks to ensure they are actually carrying humanitarian goods. A vote on the Arab-sponsored resolution, first postponed from Monday, was pushed back again until Wednesday as council members continued intense negotiations to avoid another veto by the United States.