"American Interests, Amercan Purpose" explores the relationship between moral norms and U.S. foreign policy. The book does not so much attempt to provide a theoretical framework for the ongoing debate of morality and foreign policy as to examine four different controversial aspects of the argument. Weigel begins with a discussion of the cultural Protestant moralism that characterized Woodrow Wilson's approach to world politics. Here, the author suggests that the discussion involves the fundamental question, What is morality or moral reasoning? The book goes on to examine the pressures put...