Officers in schools might be the difference
School and police officials say posting officers on campuses might help prevent school massacres, officials say.
For years, local police agencies either have assigned officers to high schools or allowed off-duty cops to work - in uniform and carrying their service weapons - on campus during the school day.
Sometimes called school resource officers, the police officers and sheriff's deputies patrol the halls, investigate complaints and work with school administrators to create security plans or discuss potential problems at school.
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