It’s hard to put a number on it but judging from the number of videos emerging online, there are more and more contraband cell phones finding their way into the hands of people in prison, who use them to record TikTok dances, take online courses, and alert the outside world to what’s happening on the inside.Guest: Keri Blakinger, criminal justice reporter at the Los Angeles Times, author of Corrections in Ink.Host: Lizzie O’LearyIf 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 TBD. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices