They did know it all along. It's been used since time immemorial. But mass media and social media have given it new opportunities. Ironically I think we all ex

They did know it all along. It's been used since time immemorial. But mass media and social media have given it new opportunities. Ironically I think we all expected that having access to more information would have been a tool against that, but it turns out to be much less effective at explaining fear than conjuring it.