Pentagon decided not to investigate its own war crimes, Like anybody expected Rumy to do otherwise!

Pentagon has announced it will not investigate the allegations of war crimes committed by the US forces during Vietnam war. Did anybody expect Pentagon to investigate its own war crimes?

The Toledo Blade Newspaper has an investigation on this issue titled: Buried Secrets, Brutal Truth and Massacre Stories need to be told that has many former US soldiers who witnessed those crimes and has them talk about them.
Yes, this is the US.