REgarding school safety in TN, I found this today...
https://www.tn.gov/governor/news/2022/6/6/gov--lee-issues-executive-order-to-enhance-school-safety.html
FYI: I also asked my school board Rep: Sherry Franks about the problem with school security when using schools as polling places and she responded that they were moving away from using schools for exactly that reason.