Psychologists say that many of them are psychopaths, sadists and narcissists getting their jollies. It's easy to underestimate how many of these types of sickos are out there: There are millions of sociopaths in the U.S. alone. But intelligence agencies are also intentionally disrupting political discussion on the web, and ad hominen attacks, name-calling and divide-and-conquer tactics are all well-known, frequently-used disruption techniques.