The Senate report on social media influence in the 2016 election is out and… it’s bad. To compare the 2016 election cycle to a Pearl Harbor-type attack via the internet would not be extreme. In fact, it would put you in good company, such as with the New York Times.
It’s hard to know what to do about this that’s effective. Encourage everyone you know to vet news sources. The Times (NY and LA alike), the Post, CNN and MSNBC are still showing me some commitment to reporting reality and not propaganda. Even the WSJ is OK if you just avoid its editorial page, which is basically the reincarnated spirit of Ayn Rand.
And get the hell off Facebook, finally. In fact, pretty much all “social media” is vulnerable to this influence, so using it in any way as a source of news is completely insane.