This is, mutatis mutandis, indistinguishable from the casual atrocities committed in Russia by the Beastly Hun during the late unpleasantness of the 1940s. The figures on the Baghdad street were, plain and simple, untermenschen, negligible existences to be erased as casually, and with as much satisfaction, as you or I might squash a buzzing fly. Box says, "Hey, this is war." In that case, I respond that we ought to shrug and respond "it's just war" when the charbroiled corpses of US troops—or contract killers—are displayed hanging from bridges.
A number of the US deaths in Iraq have been consequence of helicopters shot out of the air. If this crew had been among them, who among you is so wed to tribal loyalties that you would not agree that a rough justice was served?