If those clowns were politicians then it would have been an assasination. They weren't and it wasn.t'
Unfortunately, it turns out that this Predator Drone tends to be messy. Last year in Afghanistan it killed the last three remaining men in an afghani village, all of whom turned out to be non-al Qaeda.
Now this article
http://www.nytimes.com/2002/11/08/international/middleeast/08YEME.html
says one of the guys in that car was an American.
If there was an American in that car, al Qaeda or no, he should have gotten a fair trial. These robots are definitely the future, but they still have a few problems to work out.
From what I hear a big part of the $375 billion defense budget will go towards new drones that are designed as military drones, as opposed to the Predator which was originally just for spying.
That should be an improvement.