During World War II, 110,000 citizens and resident aliens of Japanese ancestry were banished from their homes and confined behind barbed wire for two and a half years. No more blatant violation of civil rights has ever been decreed by an American president, yet so strong were the currents of bigotry and war time hysteria that effective political opposition was impossible. However, a group of University of California social scientists, sensing the enormity of the outrage, organized in 1942 to record and analyze the causes, legal and social consequences, and long-term effects of the detention...