Many psychologists and psychiatrists want their disciplines to be "value-free," and they claim not to make moral judgments. However, they call behavior destructive to self and others psychologically unhealthy and pathological, with the cruelest sorts of people being called "psychopaths" or "sociopaths." Are those merely euphemisms for evil -- or do they have a distinctive psychological meaning? Also, what do you think of the claims of psychologists like Robert Hare that diagnosed psychopaths and sociopaths are physiologically different from the general population? Does that make a difference?