LONDON -- Is the Sunni-Shiite divide in the Middle East now deeper than the antagonism between Israel and the Arabs? You might think so given the response of some Arab governments to Hezbollah's decision to attack Israel. Even as Israeli bombs fell on Beirut and Tyre, Saudi Arabia, perhaps the most conservative Arab Muslim state of all, openly condemned the actions of the Shiite Hezbollah in instigating conflict with Israel. Never before in the history of the Arab-Israeli conflict has a state that considers itself a leader of the Arab Muslim peoples backed Israel so openly.