Unless you've been in a unit of enlisted Marines in the middle of nowhere, you don't know how depraved they, and you, can become. It is accepted to a point. How much worse it is for a weak minded individual who pulls triggers on bad guys regularly. It is up to only the unit leadership to keep a lid on it, and to remove the people that go over the edge before they throw a puppy off a cliff on video.
This is nearly analogous to what happened at Abu Grhaib.
I'm not defending his actions, but I feel like I know why it happened.
Speaking of keeping a lid on things, the lid is blown on this thing. It's all over every news source. This sucks for everybody in uniform. Standby to standby.
The Marines I have seen around the world have the cleanest bodies, the filthiest minds, the highest morale, and the lowest morals of any group of animals I have ever seen. <----This isn't a fucking joke people.