I don't have the answer to that question. The obvious answer is that democratic societies need to take education very seriously and provide the necessary cognitive tools for the populace, but that is not a short term remedy.

Thank you for asking the right questions!

This should be it's own topic. Can you run an "Ask HN"?

My thought would be an information system that is jointly published in by all nation states - like a broadcast Wikipedia. The idea is that out of the chaos in the reporting the facts that every nation agrees on will get through clearly, whereas the opinions, unfounded accusations and the rest will bury themselves in a quagmire of costly effort.

Yeah that's gonna run about as effectively as the UN, which is to say barely at all. I do have a scheme I'm developing for this problem but I'm not sure how practical it is.

Go ahead and contact me personally. We need to do something about this, and if algorithms can, algorithms must.

Train it on this - a great resource: http://www.gdeltproject.org/

I remain skeptical that merely flagging individual content as 'probable disminformation' will the address issue.

Propaganda is, at its core, a form of psychological manipulation. It doesn't necessarily have to involve overt lies. Omission of facts, tone, phrasing and choice of words, etc. are all effective tools.

There are patterns to propaganda. /That/ is their achilles heel.