Completely revised, and featuring a new foreword by Philip Zimbardo and a new chapter on the abuses at Abu Gharib, this classic work examines how the modern age, with its emphasis on technical rationality, has enabled a new and dangerous form of evil. The authors argue that the tendency toward administrative evil, as manifested in acts of dehumanization and genocide, is deeply woven into the identity of public affairs, as well as other fields and professions in public life. The common characteristic of administrative evil is that ordinary people, within their normal professional and administrative roles, can engage in acts of evil without being aware that they are doing anything wrong. Under conditions of moral inversion, people may even view their evil activity as good. In the face of this indisputable danger, this book seeks to lay the groundwork for a more ethical and democratic public life - one that recognizes its potential for evil, and thereby creates greater possibilities for avoiding the hidden pathways that lead to state-sponsored dehumanization and destruction.