We had better prepare for my old scenario involving a total cutoff of trade and travel between the West and Islamic nations. Westerners trapped in islamic nations are going to be butchered at some point, and the oil is also going to be cut off.
If OBL makes his triumphal balcony appearance and is believed to be the Mahdi, then his every order will be mandatorily carried out, including by many of our "moderates" in the West, so we had better be prepared to clean up that danger. PC values will only lead to more deaths on the homefront at that time.
While they may be able to bring disease and havoc and economic ruin to the West, what will happen in the Islamic nations after the Great Split will be far worse. In ten years, the islamic capitols and major cities may resemble Kabul or Mogadishu, with warlords and mullahs battling over the rubble. There is one thing moslem arabs do better than killing Westerners, and that is kill each other.
Let them eat their oil.
That's a funny analogy, he's engaged in deep, strategic planning while we're tossing missiles out, trying to hit him... lol...