School security requires discussion

The tragedies at Columbine and Sandy Hook are embossed on the nation’s psyche. Add to these the continuing but less notorious killings on school campuses, and there is little wonder that communities around the nation want their schools safer and more secure. Just last week, a school bus driver was killed, and one of his students was abducted.

Reaction to the violence and danger has been strong and emotional. Many schools are reacting by hiring armed guards, and there is talk about arming school staffers. A young girl was recently suspended from her school merely for having a pink plastic gun t...