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'Prepare for the worst': Michigan law requires door barricades. Should Tennessee?
by Maggie LaMere, Sydney Keller
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Nightlock door barricade used in active intruder situations (Photo: FOX 17 News)
NASHVILLE, Tenn. (WZTV) —

After a tragic mass shooting as a Nashville Christian elementary school, school leaders are working to add new safety measures.

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After a threat in Oxford High School in Michigan, they use a nightlock door barricade. Michigan law actually requires this device to be in every school.

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