I'm afraid I'm not in the least surprised, either by what appears to have happened at Haditha, or by the attempts by the authorities to lie their way out if it, denying that anything wrong happened for as long as possible, and then refusing to accept any responsibility for the actions of the people directly involved.

I'm not surprised by murder and rape and so forth in civilian life either.

But that doesn't mean that such things should be shrugged off, and treated as trivial.