Facebook updated fact-checking guidelines in August to include ads, but some fact checkers say they learned about the change only from Zuckerberg's testimony
Alex Hern / The Guardian : Tweets: @carnage4life and @alexhern See also Mediagazer Tweets: Dare Obasanjo / @carnage4life : This is an interesting point about 3rd party fact checking of political ads on Facebook. People basically arguing orgs Facebook hired like Politifact should be able to ban Trump or Elizabeth Warren ads and it isn't clear they want to be in that business. https://www.theguardian.com/ ... @alexhern : “Several of us really don't want that power,” one fact checker said. “One of my first questions is, why are you now giving us powers to remove content when you haven't before? That's just a Pandora's box in my opinion.” https://www.theguardian.com/ ... See also Mediagazer