The Mueller report is now out. And while at least according to the attorney-general Bill Barr, it does not find that Donald Trump colluded with the Russians in trying to manipulate the 2016 presidential election. It does find that such manipulation occurred. So the question is could the same thing happen at next year's presidential election?
The big US technology companies say they've done a lot since 2016 to root out malicious actors spreading fake news. Facebook, for example, works with a team of fact-checkers to test the veracity of certain websites. And if they're found not to be trustworthy, those websites are less likely to appear in your news feed. Twitter says it now blocks any user it finds has stolen somebody else's avatar or bio.
But the problem is shifting with Instagram fast becoming the next battleground in the fight against misinformation. That's because pictures are more likely to trigger an emotional response. And therefore, more likely to be spread more quickly and more widely.
YouTube, meanwhile, is worried about people using its site to create videos which promote conspiracy theories. The problem is for companies like this that so much stuff is uploaded every day that finding malicious content is like hunting for the proverbial needle in a haystack. But on the other hand, they now have a new weapon, AI. They can now create an algorithm which will detect the kind of content they might want to delete based on what they've deleted before. A team of sniffer dogs has just joined the hunt for the needle.