When the president laid out his principles on Thursday, one formulation was particularly interesting: "Anyone in the world, including the Arab world, who works and sacrifices for freedom has a loyal friend in the United States." Why "including the Arab world"? Because that world--or better, perhaps, the Middle East or the Islamic world--is the heart of the problem. [.. ]The president said on Thursday night, "Any outlaw regime that has ties to terrorist groups, and seeks or possesses weapons of mass destruction, is a grave danger to the civilized world, and will be confronted." That is Iran, above all. On the outcome of the confrontation with Tehran, more than any other, rests the future of the Bush Doctrine--and, quite possibly, the Bush presidency--and prospects for a safer world.