I agree the level of violence on TV and in the movies is way out of control (reason I don't watch much of the first, or go out to the second).
What I don't understand is your bringing the military into the discussion. I don't remember receiving any such training. But then again, Isn't it the job of the military to kill people and break things?
On a personal note from observing how I react to just music when the music is calm and soothing my mood is mellow. BUT when it is angry sounding I tend to be more on edge.
As a homicide victim's survivor I've stopped watching violent movies/TV as it disturbs me to much. In the past I never thought about it one way or the other.
I find these studies interesting. With these new findings then the prisons and jails need to BAN all violent TV as they incite the inmates to more violence.