Should video cameras be placed in public areas of schools to help protect students from school violence?

Today, we see a lot of school violence happening. To stop or prevent these violence, we should set up video cameras in public areas in schools. More security will reduce the number of violence in school. People will act and do things more carefully and it will prevent students from getting hurt and provide better learning conditions in schools. Campus security and safety is an important feature of postsecondary education. The Department of Education is …

…that is why the teachers and hall duty people are for, but they have limits. They will not be able to catch all of obligations or problems building up among students, illegal materials in school, and vandalisms. The teachers or hall duties might just turn around for something and any incidents might happen and they might not be aware of those. So it is necessary to set up video cameras in public areas of schools.