A study shows that the greatest concentration of psychopaths is in Washington, DC. This is a contest in which it isn't even close, as Politico informs us. But then again, you knew that, right?

Ryan Murphy, an economist at Southern Methodist University, "matched up the 'constellation of disinhibition, boldness and meanness' that marks psychopathy with a previously existing map of the states' predominant personality traits, he found that dense, coastal areas scored highest by far – with Washington dominant among them. 'The District of Columbia is measured to be far more psychopathic than any individual state in the country,' Murphy writes in the paper."

That explains an awful lot, now doesn't it?