Facebook and Google have become the primary sources of news for a significant chunk of the developed world, which means that both companies are in a position to influence the opinions of millions of people by filtering out news stories that don’t match their agendas, and highlighting the ones that do. That’s a frightening thought, and in Facebook’s case, there’s a chance that it might actually be a reality. At least, that’s what Gizmodo claimed in a report on Sunday, saying that Facebook workers have routinely suppressed conservative news stories and injected anti-conservative news stories in the past, and possibly still do so.