Psychopaths continue to be demonised by the media and estimatessuggest that a disturbing percentage of the population haspsychopathic tendencies. This timely and controversial new booksummarises what we already know about psychopathy and antisocialbehavior and puts forward a new case for its cause - withfar-reaching implications. Presents the scientific facts of psychopathy and antisocialbehavior. Addresses key questions, such as: What is psychopathy? Arethere psychopaths amongst us? What is wrong with psychopaths? Ispsychopathy due to nature or nurture? And can we treatpsychopaths? Reveals the authors' ground-breaking research into whether anunderlying abnormality in brain development leaves psychopaths withan inability to feel emotion or fear. The resulting theory could lead to early diagnosis andrevolutionize the way society, the media and the state both viewsand contends with the psychopaths in our midst.