The killers of Mr. Gemayel have not been identified and may never be. But the attack fits snugly into a pattern of provocations across the region by Iran and Syria, which appear to believe that American reversals in Iraq have given them the opportunity to create what Syrian dictator Bashar al-Assad calls "a new Middle East" -- one in which their influence and radical ideology will predominate. They would make their client Hezbollah the power broker in Lebanon, restoring Syrian suzerainty. They would use Hamas to block any progress toward an Israeli-Palestinian settlement and perpetuate a continuing, if low-grade, war on Israel. And they would continue to bleed the United States by supplying insurgents in Iraq with arms and sanctuary. Iran meanwhile presses ahead with its barely disguised nuclear weapons program: President Mahmoud Ahmadinejad recently promised to increase the number of centrifuges enriching uranium from the current 328 to 60,000.