So if you are watching a television screen and a picture of a soldier with "Kill 'em all" on his helmet comes up, you are standing too close to him?

The point I'm making is, a slogan like that gives a clear message - "The army this man belongs to is here to kill civilians" is what it is saying, and that is not a good message to give people you want to win over to your side. It's also not a true message, I'm sure, so far as the vast majority of soldiers are concerned. Very likely it isn't even true of the individual soldier concerned - though I think it might be reckless to risk putting him in a situation where he might act out his fantasies.

And I think that the suggestion that colluding with that kind of thing on the grounds of "the need for inspiration for the troops" is way off line. It's encouraging the kind of attitudes that threaten to undermine the whole stated purpose of this invasion. It's a way of thinking that is likely to mean more dead civilians, and more dead soldiers among the invasion force.