Chris Christie notes the obvious flaw in NRA plan:
Schools are three dimensional.

“In general I don’t think that the solution to safety in schools is putting an armed guard because for it to be really effective in my view, from a law enforcement perspective, you have to have an armed guard at every classroom,” Christie said while appearing at an event in Newark, N.J. “Because if you just have an armed guard at the front door then what if this guy had gone around to the side door? There’s many doors in and out of schools.”

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