It's not the training the veterans received in the service that is a threat to society, its the attitudes they have when they re-enter civilian life.
Most of these attitudes are the
same ones they entered the military with, but which have
not been "reprogrammed" by the military.
A great part of this comes from the changes in the allowed training culture and methods... which have been greatly altered in the last 20 years.
When I experienced USMC basic training in 1981, a great deal of effort was expended to change our attitudes toward each other and society... we were "broken down, then built up" to respect "God (as each individual viewed the Divine), then Country, then the society and people we are tasked to protect, then each other, and lastly ourselves".
I saw a documentary 3-4 years ago on USMC basic training that had been filmed in ~2000.
Immediately obvious were the emphasis on doing nothing that "might damage the individual's self-esteem and sense of self-worth"... and the almost total elimination of any form of negative reinforcement outside of additional exercise.
They were provided with little reason to STOP thinking and acting like they did "in the hood", and not much more reason to
start thinking "like Marines".
