Late this month, leaders of the Palestinian Authority are expected to issue a Unilateral Declaration of Independence and ask, in the words of PA Foreign Minister Nabil Shaath, that it receive "the blessing of the U.N." That blessing will not come from the U.N. Security Council: If the Palestinians ask for approval from that body, President Obama is expected to exercise the American veto, though he has not unequivocally pledged to do so. He should -- for reasons I will attempt to explain in a moment. In the General Assembly, however, blessings almost certainly will be bestowed through the passage...