Why Can Everyone Spot Fake News But YouTube, Facebook, And Google?

And beyond that, why is it — after multiple national tragedies politicized by hoaxes and misinformation — that such a question even needs to be asked?

via BuzzFeed News: https://www.buzzfeed.com/charliewarzel/why-can-everyone-spot-fake-news-but-the-tech-companies?utm_term=.xhdo1P7WP#.wdAJ87kR7

And beyond that, why is it — after multiple national tragedies politicized by hoaxes and misinformation — that such a question even needs to be asked?