Are Dating App Companies Responsible for Protecting Their Users from Sex Offenders? Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email In this July 5, 2015, file photo, a man uses the dating app Tinder in New Delhi. ( AP Photo ) Produced by Lydia McMullen-Laird Hosted by Tanzina Vega Produced by GBH and PRI