Sergeant William Calley's defense of his behavior in the My Lai massacre and the widespread public support for his argument that he was merely obeying orders from a superior and was not personally culpable led Herbert C. Kelman and V. Lee Hamilton to investigate the attitudes toward responsibility and authority that underlie "crimes of obedience"-not only in military circumstances like My Lai but as manifested in Watergate, the Iran-Contra scandal, and the Kurt Waldheim affair. Their book is an ardent plea for the right and obligation of citizens to resist illegal and immoral orders from above.