Demand metal detectors and scanner/x-ray rays systems in schools now!

Since Columbine in 1999, there have been 25 active fatal shootings at elementary, and high schools in America. Recently Marjory Stoneman Douglas High school in the town of Parkland, another massacre happened. We need to keep our kids, as well as, educators safe. We need metal detectors, and  scanner/x-ray sytems, such as, a milimeter wave unit they use at the airports installed in our middle schools, and high schools immediately across the U.S. Some philadelphia schools have them, so why not all the schools; public and priocial. When this takes place, we will feel relieved  knowing when our kids, and educators go off to school/work, they will be safe and return home.