In schools where they've increased the numbers of security guards, metal detectors and cameras, that has helped lower instances of some crimes. But the wigged-out "crazy" who comes in and begins randomly shooting or holding people hostage can still do his evil deeds if he's determined to.

To me, solving the problem involves a different approach to mental health and emotional expression, particularly for men, most of whom aren't trained to feel and express emotions in a healthy fashion. Then when the really at-risk, desperate ones go over the edge, they end up acting out on their anger and desperation, often victimizing children and others who are completely defenseless--the most vulnerable victims they can find. It's heartbreaking. And it's far more than a school security problem. A history of bullying and victimization seems to be a common thread among many of the recent publicized events. Scares me to death. I'm so glad my son's no longer in primary or secondary school, and I'm glad I'm no longer teaching, too.