In the wake of the Sandy Hook shooting, experts advocate fundamentals such as controlling access to the school, having a crisis plan in place, and retaining a strong support staff for prevention.
Police are increasing their presence at elementary and high schools across the United States this week.
One small district in western Pennsylvania, whose board had previously voted to eventually arm police in schools, got a court order over the weekend to arm an officer in each of its schools by Monday. The superintendent says that he expects an armed officer to be in each of its 14 schools from now on.
But even as superintendents and principals around the country scramble to update safety plans and investigate new options, they also face a grim reality: Sandy Hook Elementary School in Newtown, Conn., did pretty much everything right.
The school had a new buzzer and camera system, installed this year, that visitors were required to go through to be admitted. It had lockdown procedures and safety drills, as well as a good relationship with local first responders.
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