Inside the growing industry to defend schools from mass shootings

From drones to body armor to bulletproof whiteboards, companies are offering schools a multitude of products to try to deter or protect against the next school shooting. But does any of this stuff work? On today’s show, a look inside the school shooting industry. What's for sale and the psychology behind the growing industry. Related episodes: Why are so many public schools closing? For sponsor-free episodes of The Indicator from Planet Money, subscribe to Planet Money+ via Apple Podcasts or at plus.npr.org . Fact-checking by Sierra Juarez . Music by Drop Electric . Find us: TikTok , Instagram , Facebook , Newsletter . Learn more about sponsor message choices: podcastchoices.com/adchoices NPR Privacy Policy