Delete a selfie? Facebook saw it — May 10th, Hour 1

Post a pic. Regret it. Delete it. Facebook tracked when teen girls did that, says a former company exec. Then, at that moment, it allegedly hit them with beauty ads. Plus, NYC tests crime-predicting AI and drivers want buttons back in cars. I also talk to Ken from Ohio, who says his Apple Watch saved his life. Learn more about your ad choices. Visit megaphone.fm/adchoices