Look who else was under the rock!
Jed Babbin suggests that the Iraqi car bomber was really one of the usual Jihadist space cases:

There is more, much more, than is being reported about the suicide bombing that killed four Americans earlier today. And from a very credible source, I have heard enough to convince me I had to correct something I wrote this morning. This suicide attack does represent an evolution of this war to something far uglier than we may be prepared to deal with. The suicider was not, as the Iraqi vice president announced, an Iraqi army officer. He was a member of Hamas--or possibly a Saudi--and one of many terrorists that are embedded throughout Iraq. This is no longer a war to remove the threat of Saddam's weapons of mass destruction and liberate Iraq. Yes, those still are part of our objectives. But it is--much more--a war between our conventional forces and most of the terrorist world.
...
In preparation for this war, while we diddled with the U.N. for the past five months, Saddam has been welcoming terrorists in by the truckload. And now, it is they who are fighting, and preventing regular Iraqi units from surrendering. They are also at the heart of the atrocities we are seeing, and will continue to see. Especially the civilian deaths that the Iraqis are trying to lay at our door.

And Junior Assad says he wants in:

Syria, alarmed by the impending collapse of its neighbor and ally, has called for suicide missions against U.S. forces in Iraq.

And then there's our old pals:

One of the top commanders of Yasser Arafat's Fatah movement, the largest faction of the PLO, says hundreds of Palestinians living in Lebanon have been sent to Iraq to carry out suicide attacks against American and British soldiers, according to a report in the Jerusalem Post.

What a surprise.