If you ask me, the whole arming of the teachers is more of a stop gap curing of the symptoms rather than the cause.

Putting guns into the hands of responsible and reliable personnel in school will discourage and deter would-be mass murdering cowards from carrying out their plans, but it does not account when the Alphabet Soup agencies that seem to be behind most of these henious crimes want something to happen, nor does it account for the broken culture that provides fertile ground for more of these maniacs to sprout up.

Fix both, and the amount of mass shootings will go down.