"It is being investigated" - an investgation that only started when Time Magazine started sniffing around with video evidence, after months during which the army had been presenting a version of events whuich they now admit was totally fictitious.

People do terrible things when they are in a terrible situation, that is predictable, it is even understandible. But the cover-ups and the attempted cover-ups, that is another matter. It's worth remembering that the initial inquiries into My Lai determined that nothing wrong had hapened.