More than fifty years after the Nuremberg and Tokyo trials, nations still struggle with the necessity of holding individuals accountable for human rights violations. This book offers an unprecedented progress report on this crucial enterprise. After examining the scope of international crime, the mechanisms created by states for enforcing laws, and the practical difficulties of applying such laws, the authors conclude their comprehensive study with an important assessment of the future of accountability. In this new edition the authors also cover recent developments such as the jurisprudence of the UN's Yugoslavia and Rwanda tribunals, new domestic attempts at accountability, and the International Criminal Court.