Not that long ago, I would have scoffed at the very idea of agents hired by Russia's intelligence services infiltrating the Internet social media world I participate in on a daily basis (including, one must assume, popular discussion forums such as this one.) But now I'm all but convinced I've read, if not actually done battle with, members of Putin's Troll Brigades More worrying still: Make no mistake about it: Social media is now a vital part of Vladimir Putin's efforts to weaken and destabilize the United States. Efforts which rely extensively on propaganda and disinformation. And serious people are increasingly concerned about it. Emphasis mine.