Milwaukee Journal – Sentinel Editorial:

The stabbing at Hamilton High School last week, in which a 15-year-old girl was attacked with a knife by another girl in a bathroom, came on the day the school was to roll out its airport-quality metal detector.
But while metal detectors can keep weapons out of schools when properly used, we believe no machine could have guaranteed this attack wouldn’t have happened. Students can be attacked anywhere. In order to get a handle on violence, more mentoring is needed among at-risk youth.
The Violence-Free Zones program, now in use in seven local high schools, has been successful in reducing violence and suspensions by offering a big brother, big sister type of approach.

Police calls at and near Madison high schools: 1996-2006.