Dr. John Lott has a short piece on whether schools should allow teachers to carry guns in Health Behavior Research, a journal of the American Academy of Health Behavior. The paper can be downloaded here.
With 20 states having teachers and staff carrying guns to varying degrees on school property, we don’t need to guess how the policy would work. Fears of teachers carrying guns in terms of accidents or other problems have not materialized. Letting teachers carry is the only effective way to overcome the strategic advantages of mass public killers. The other alternatives to preventing mass public shootings have real limits.