It’s time for the politicians to forbid sale of all automatic weapons. They’re no good for self-protection, nor for hunting, they should be banned.
Also raise the age limit to 21 and toughen background checks.
Keep all schools free of any firearms and all other deadly weapons, except for police monitoring the schools.
The teachers should not have to worry about some distressed kids overpowering them and use their handgun against them or other students. Teachers have enough to worry about. They should concentrate on being mentors, teachers and support for their students and not doing police work.