If affirmative action and other ethnicity-based social programs are justified, then J. Angelo Corlett believes it is important to come to an adequate understanding of the nature of ethnicity in general and ethnic group membership in particular. In Race, Racism, and Reparations, Corlett reconceptualizes traditional ideas of race in terms of ethnicity. As he makes clear, the answers to the questions "What is a Native American"? or "What is...