There's a difference between being outraged about a crime that has been committed by opponents and at a crime committed in your own name, so to speak.

I'm sure it makes little difference to a child whom her family has been murdered by. But it should matter to us when we bear some kind of responsibility for the killing. In the case of citizens of countries who put those killers in place, that is something we need to face up to.

And even aside fromm this, if we only care about "our boys", and our own skins, we should recognise that this kind of episode makes it more likely that there will be people motivated to join the insurgents in Iraq, or carry out vengeance attacks in our own cities.