Those were the good old days, before school shootings became a part of our national lexicon and schools, aiming for greater security, transformed themselves into quasi-prisons, complete with surveillance cameras, metal detectors, police patrols, zero tolerance policies, lock downs, drug sniffing dogs and strip searches.

Unfortunately, somewhere along the way, instead of making the schools safer, we simply managed to make them more authoritarian. It used to be that if you talked back to a teacher, or played a prank on a classmate, or just failed to do your homework, you might find yourself in detention or doing an extra writing assignment after school. Nowadays, students are not only punished for transgressions more mior than those—such as playing cops and robbers on the playground, bringing LEGOs to school, or having a food fight—but they are punished with suspension, expulsion, and even arrest.