Last Night’s BBC News: “Charles Krauthammer explains why the car bomb is the weapon of choice in Iraq:

The resistance to the U.S. occupation is overwhelmingly Sunni Arab. But it represents only 15 percent to 20 percent of the Iraqi population. For 30 years, through their own Saddam Hussein, they used their power not just to rule but to rob. They gorged themselves on Iraq’s oil wealth. Tikrit was a sleepy town before Saddam rose from it to Stalinist god-king and poured not only privilege, power and protection into Tikrit and onto Tikritis, but vast amounts of money as well.

The Iraqi resistance, such as it is, is rooted in the Sunni Baathists who have everything to lose if the Americans succeed. But it is precisely because they represent so small a minority that they are likely to fail, barring a collapse of American will at home.

Which is why the enemy has turned to the car bomb. The car bomb does not require a constituency. It does not require popular support. It requires only one person who knows explosives and another who is willing to drive and perhaps to die.

The car bomb is the nuclear weapon of guerrilla warfare. The 1983 car bomb attack on the Marine barracks in Beirut, killing 241 Americans, drove the U.S. out of Lebanon.

[…]

The war in Iraq now consists of a race: the U.S. is racing to build up Iraqi police and armed forces capable of taking over the country’s security — before the Saddam loyalists and their jihadist allies can produce that single, Beirut-like car bomb that so discourages Americans (and Iraqis) that we withdraw in disarray ….”