Install bullet proof classroom doors and windows

We have an obligation to protect our children. We cannot rely on the security measures currently being taken during lockdowns in schools. Turning off lights, locking a classroom door and huddling in a corner or under a desk will NOT stop a bullet. If you are going to hold a classroom full of children inside during an attack at the very least install thick metal doors that are bullet proof and remain LOCKED AT ALL TIMES. Windows need to be bullet proof as well. This WILL SAVE LIVES. The administration needs to hear us. The people are FED up with the innocent being placed at risk.