This. Facebook agreeing to work with German government to do something about “racism” comments in German version (read: FB users talking about Cologne attacks that weren’t covered by mainstream press at all for weeks). FB blocking links to a mainstream respectable media’s article about freedom of speech in Czech version.
I have no doubt that FB doesn’t consider it bias. They’re righteous and seeing that attitude all over the supposedly “liberal” sphere is frightening.
https://en.m.wikipedia.org/wiki/Children_Overboard_affair
Which was a release of wrong information that demonised refugees for supposedly throwing their children into the water to blackmail the Howard government into letting them into Australia. This was released by Peter Reith, but it was subsequently revealed it was nothing of the sort, but it helped create a moral panic that boosted the electoral prospects of the Howard government, who subsequently won. It wasn't checked carefully by media organizations who ran the story - so it indeed got out of hand.
Which answered his question.