considering the recent shooting? frustration, stress, depress, shocks and mental problems has been associated in past mishaps. U.S Soldiers and service men going to wars to me may cause more harm and less gain to the national homeland security.
kid, the recent shooting was done by a man in our military that was "turned/radicalized" against us by the enemy right here in our soil... this is not new, it has happened before, plenty of times during the Cold War for example, military people turned against us by our enemies like the "US Navy Walker Case" (espionage at that time that cost hundreds of lives) look it up... I know, retired military here.
we are in a war against an unconventional enemy, meaning one that does not wear a uniform nor follows Military Convention rules, they will do whatever they can to attack us right here in our own country INCLUDING turning our own against us....! THAT is what we are facing...