The incomparable This American Life looks at psychopathy and its adherents. Given how much talk we've had, over the past few weeks, involving psychology or evolutionary psychology this seems appropriate. 


The most affecting segment is on a lifer in California who has some of the highest scores on the psychopathy test, but who the creator of the test thinks is getting a raw deal.
There's also a fairly humorous bit by Jon Ronson on retired business exec Al Dunlap, "rumored" to be a psychopath.