Because of this, weapons can make their way into schools without being detected. Some schools that did not have metal detectors installed these devices after bomb or gun threats. Columbine High School in Colorado is an example of this trend. Before the metal detectors were installed, two students walked into their school with guns and shot and killed several students and teachers. Weapon threats disrupt the school schedule.
Threats can cancel schools.
If not taken seriously, they can injure or kill not only my friends and teachers, but also your friends and teachers. I also believe if Columbine High School had metal detectors, the tragic incident that happened on April 12 could have been prevented. School uniforms have been a major concern to kids around the United States. Uniforms have been appearing in schools nationwide, and are still growing widely. Students I have talked to claim that uniforms deprive students of a way to express their feelings, and show emotions.