I get what you're saying, but I'm more of a proponent of the free market taking care of this. Either by criticizing it in the comments, and/or by voting on it.

When you're pointing to world news it's important to also point out that the mainstream media does spread a lot of false information too. Either outright lies, half truths, or opinion pieces pretending to be actual news. Just thinking back at the last few years I've seen so many news items later be debunked, on both sides of the political spectrum. No wonder the trust in the mainstream media is at an all time low right now.

No matter which sector, people need to be more sceptical in general. And even take legitimate news sources with a pinch of salt. But that's personal responsibility. True decentralization. The last thing you want is an authority on what's true or not. That can quickly turn into an Orwellian 'ministry of truth'.