your assertions of American trigger-happiness and lack of IFF is completely wrong. Look at the following video:
http://www.liveleak.com/view?i=87f_1198860424
where they took extraordinary effort to identify a weapon, call back to the frontline lawyers and allowed a number to get away.
If I were one of the pair of Apache pilots, I would have thumbed the fire button repeatedly in the first few seconds when the truck was trundling along full of insurgents in the back, simply because they have already transgressed the Health and Safety law related to transport.