C. Fred Alford interviewed working people, prisoners, and college students in order to discover how people experience evil--in themselves, in others, and in the world. What people meant by evil, he found, was a profound, inchoate feeling of dread so overwhelming that they tried to inflict it on others to be rid of it themselves. A leather-jacketed emergency medical technician, for example, one of the many young people for whom vampires are oddly...