Why we should worry about Facebook's Trending topics disaster

Facebook isn't a great place to get your news. Yet millions of Americans use the social network to learn about what's going on in the world every day.

This is core to a new controversy over Facebook's Trending feature, which exists to connect users to relevant stories. The company fired several trained journalists from the Trending team last Friday, leaving artificial intelligence and technical staff to identify and deliver stories to the site's users. 

Facebook CEO Mark Zuckerberg later commented on his company's place in the news business.