The rules of war... Rules that only Americans are supposed to follow. Ask any ranger that jumped into Panama, did the enemy wait until they landed to open fire. After all, its against the rules of war to fire on an airborne trooper while they are parachuting in. The same rules that say in an ambush, you can't "double tap" a person after you cross that road. Its hard for me to find fault in a solider while in a combat zone, fighting an enemy wearing civilian clothes. With the added stress of having to worry about civilians walking up to them and blowing themselves up. Yeah the guy !@#$ed up... I doubt if it was premeditated. War isn't pretty, get over it.