A school with armed teachers and every door locked sounds a lot more like a prison than a nourishing educational environment. How does the discussion around school shootings change when you change your starting point from “how can we stop this?” to “what kind of world do we want to live in?”  Guest: Ron Avi Astor, professor of public affairs, social work, and education at UCLA.  If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices