Jay Leno makes a few jokes about shaking a Goldman Sachs exec and 5 Republicans fall out of his pocket, and today most Americans believe it. Never mind that it would actually be a President, and a bunch of Democrats. It proves the point ... disinformation is more widely spread, and more widely accepted than ever. The internet has the capacity to dispel it, but instead its allowed rapid and widespread dissemination. I still get forwarded emails that have long since been proven fraudulent, but folks keep hoping that the guy in Nigeria is sincere about sending 2 million to their account.
To the OP, Information Operations is the formal title of our Ghost Army today. And they are working harder than ever. I was fascinated on my first trip to Iraq by their methodology; they often take unemployed Artillery officers who understand fire and effect. They give them a small staff, and form a FIRES team, but what they are doing is "firing" information on the population, then using means to determine "effect" so they can "adjust fire."