Asks whether or not there is a need, which emerges inescapably during the course of human development, to identify some people as allies and others as enemies. In answering this question, it describes the potential for moral splitting within everyone, and the circumstances that activate this potential. (Author)

Defines moral exclusion. Discusses the antecedents and symptoms of moral exclusion. Explores the interaction between the psychological and social factors that foster its development. Briefly discusses outcomes of moral exclusion. Introduces the articles in this issue by presenting an overview of the themes examined in this issue. (JS)

Focuses on the detection and deterrence of moral exclusion. Discusses the possibility that a pluralistic perspective that values diversity may play a key role in combatting moral exclusion, yet points out that diversity can splinter as well as enlarge moral communities. Suggests research approaches for future study. (JS)

Describes how certain motives can combine with the exclusion of people from the moral universe, leading to torture, genocide, and mass killing. Personal goal theory is presented as a framework that guides moral conduct. Discusses the psychological bases of exclusion and inclusion. Discusses the power and obligation of bystanders. (JS)

Analyzes psychological mechanisms by which moral control is selectively disengaged from inhumane conduct in ordinary and unusual circumstances. Explores the symptoms of moral exclusion as described in the literature. Presents categories that unify theory on moral exclusion and contribute practical classifications for use in empirical studies. (JS)

Examines moral exclusion from the perspective of prejudice and stereotyping. Analyzes the causes and consequences of delegitimization. Suggests two models that describe the role of conflict in delegitimization and of ethnocentrism in delegitimization. Describes historical events that illustrate the consequences of delegitimization. (JS)

Discusses the moral exclusion of American citizens of Japanese descent during World War II. Compares perceptions of moral community, fairness, and redress for three groups. Contrasts the views of Caucasian Americans; the Nisei, interned American citizens; and the Sansei, children of Nisei born after World War II. (JS)