Facebook, Google bar fake-news sites from their ad networks - MarketWatch
Facebook, Google To Crack Hard On Fake News Websites | Special Report News Journal,Stocks News
This is about barring deceptive Facebook ads for fake news -- clickbait for pages with Adsense on them. Intent to deceive for monetary gain.
It's not about banning CNN or Breitbart -- news media you don't agree with.
Define: False reports of facts -- not opinions.
If I advertise that "the DJI lost 3,000 points today" and then have a page selling prepper supplies with Adsense on it < this would be one outrageous example.