Answer:
I believe that schools are handling security very well, but I think that more schools should install metal detectors at the entrances, update security equipment regularly to make sure it works, and make the security guards monitor hallway traffic, and have at least two security workers monitoring the building at all times to ensure that if something were to happen, someone gets their quicker.
I think they should use metal detectors because a student may bring a knife or other weapon into the building, and that can be unsafe for their peers and teachers.
They should update security equipment regularly because cameras may not work properly, might break, or be outdated. New and better security cameras are being invented every day, and schools should always use the best in order to ensure the safety of their staff and students.
Security guards are usually hired in schools in order to keep watch, but how often do you really see them? My current high school only has one security guard, but the building is so large that if something were to happen on one floor, it may take the security guard several minutes to get to the scene. If there are more than one security guard, it would be easier for them to get to the scene and make sure nobody is harmed.