Hey, Facebook: Social media really can change what people believe

Facebook CEO Mark Zuckerberg doesn't believe that fake news on his social network influenced the election.  But recent findings from the Pew Research Center suggest the opposite is true, as 20 percent of social media users say they've changed their stance on a political issue because of something they saw on sites like Facebook. The shift was usually pessimistic. SEE ALSO: Facebook is the most powerful force online — and these new numbers prove it "People who said they had changed the