All of us have seen how by not making our schools secure enough, bad things such as shootings have occurred. If we put metal detectors in schools then no guns, knives or any other weapons can be brought into the school. They should also have x-ray machines so they can see what is inside bags. If there were metal detectors and x-ray machines in school we could have stopped school shootings from happenings. Every person (teachers, students, visitors and any other person entering the school) must be forced to go through the detectors. Any person that does not want to go through this should not be allowed in the school.