Having armed police officers stand guard at schools, is an idea I'm for, it makes any mentally disturbed person who would think about shooting kids, worry about being shot before they ever reach any of the kids. But having teachers armed, is a very bad idea. How long before some student who has been bullied, and wants to extract his revenge, steals the gun, and goes on a rampage. What a horrible idea.
Mentally disturbed people aren't exactly known for rational thinking... you know?
Yeah, but it doesn't take much rational thinking for someone to see armed police officers and know that they'll get shot up if they try anything.