If nothing else, there are the practical considerations. When are teachers to train with firearms? Every teacher I know (including myself) struggle at points to keep their workloads manageable. Lesson planning, grading papers, coaching, helping students put together résumés, work on SAT prep, and then a weekend at the pistol range? Had I wanted to continue carrying a firearm at work, I would’ve stayed in the service or chosen a different profession after my enlistment. Having worked with high-school students for several years now, I understand that my ability to be effective as a teacher is predicated on the existence of an environment conducive to learning and trust building. This environment will not exist in a schoolhouse where teachers double as armed guards.

The headline is the closing two paragraphs, run together, from this Atlantic item.