Book excerpt: Defined by custom and treaty, and now increasingly embodied in charters, regulations, and resolutions of international organizations, does the existence of international law point to progress in humankind's capacity for moral conduct? Or does the lack of a discernible ethical foundation in either law or political action make progress impossible to define? In Law and Moral Action in World Politics, the authors -- activists and scholars of international law and international relations -- pose these questions in new ways. Some adhere to a progressive reading of the law; others adopt a critical stance. Topics included the function and historical evolution of the law; the cultural and intellectual assumptions of influential legal texts; and the experiences of legal activists in using law to pursue moral ends, including the rights of indigenous people and the protection of international law itself.