Schools have spent millions to detect threats online. It mostly doesn’t work. Guest: <a href="https://twitter.com/ArijitDSen?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Eauthor">Arijit Sen</a> Host: <a href="https://twitter.com/lizzieohreally">Lizzie O'Leary</a> Learn more about your ad choices. Visit <a href="https://megaphone.fm/adchoices">megaphone.fm/adchoices</a>

What Next: TBD | Tech, power, and the future

Can an Algorithm Spot a Shooter?

Every Friday and Sunday, Slate’s popular daily news podcast What Next brings you TBD, a clear-eyed look into the future. From fake news to fake meat, algorithms to augmented reality, Lizzie O’Leary is your guide to the tech industry and the world it’s creating for us to live in.