My name is Peter Veltri. I am a Korean War veteran, firearms instructor and a retired police officer.
In reference to the school shootings:
1) All glass on doors and windows should be reinforced.
2) All schools should have an emergency warning system with specific sounds combined with emergency lights.
3) Responsible teachers and others who are well trained should be armed with pistols.
4) Those with guns should be able to be identified by police and other emergency responders.
Every school should do this in addition to schools' other security measures.
PETER J. VELTRI