The emotional toll on students and staff can linger for days or even weeks, said Ken Trump, president of National School Safety and Security Services, a consulting firm that focuses on K-12 safety.
Spate of hoax calls about active shooters stir fear at college campuses around the U.S.
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Ken Trump, president of National School Safety and Security Services, a consulting firm based in Cleveland, Ohio, said he's found items like security cameras gathering dust in boxes in some of the schools that he's worked with.
States aim to boost school safety after Tennessee shooting
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