Politics & Government How Social Media Platforms Decide What Makes An Ad Political 4:21pm November 06, 2019 Technology Media Politics Share URL copied to clipboard! Copyright 2019 NPR. To see more, visit https://www.npr.org. 300x250 Ad More All Things Considered Arts Yiddish is making a comeback National Pedestrians hear AI-generated messages from billionaires at hacked crosswalks 300x250 Ad Support quality journalism, like the story above, with your gift right now. Donate