Key Findings From 'The Facebook Files'

P.M. Edition for Sept. 17. The Wall Street Journal reviewed a trove of Facebook's internal documents showing that in many cases the social-media giant knew about its flaws, but often did little or nothing to fix them, even ignoring internal warnings from employees. Global tech editor Jason Dean joins host Annmarie Fertoli to wrap up our investigative series on Facebook. Learn more about your ad choices. Visit megaphone.fm/adchoices