They cannot think that far ahead. As liberals, they see things in the most pessimistic light and never in the best circumstance. No matter how fast the cops could get there. Pro's with guns beats criminals anytime they don't KNOW they have the edge. And students on campus with training and guns would prevent criminals from knowingly selecting those on campus at random for safe VICTIMS of their crimes. Don't argue this, just what you learned in statistics class. Sooner or later you're going to lose. And criminals hate to lose. So they don't act. It's PREVENTATIVE. After a couple lose the cost become too great too play the game. And if you still hate this thought. You are irrational. And you would be the next dead criminal.