Could have something to do with the fact that the American military wears uniforms and the insurgents don't.

It's easy for the Iraqis to target the 6' tall, blond haired, white kid in the distinctive uniform.

It's a lot tougher for the Americans to accurately target the insurgent, who looks exactly like every other Iraqi walking down the street, and very often is the average looking Iraqi walking down the street.

I would also think that to an alarming degree Iraqi casualties are mistakenly being put in the "Iraqi civilian" casualty category instead of the "Iraqi insurgent/militant" category for the above mentioned reason.

When a dead Iraqi is found on the side of the road all you can tell is that he's a dead Iraq. Since he doesn't wear a uniform or carry "insurgent" ID or bear any other marks distinguishing him as an insurgent there's no way to reliably label him as an insurgent.

But even taking all of this into account I still think that this is a great topic and that you've presented it fairly, and that it deserves to be further looked into and discussed.

__________________
...Old Europe, a once-dominant region now reduced to sucking at the geopolitical teat of America... they spent the better part of the last millennium conquering the world and taking the good stuff home with them... And what do they get for their troubles? Ungrateful colonies demanding their independence. And after you taught them how to play cricket!...

-Jon Stewart