The subject of the book is responsibility for collective crime. Collective crime is an act committed by a significant number of the members of a group, in the name of all members of that group, with the support of the majority of group members, and against individuals targeted on the basis of their belonging to a different group.The central claim is that all members of the group in whose name collective crime is committed share responsibility for it. This book's special interest is with analytical and normative defense of arguments that purport to explain reasons for, and the character of, responsibility of decent people. Those who did not intend, support, or committed wrong, are still accountable in a non-vicarious manner. The basis of their responsibility is the crime-specific relationship between group identity and personal identity.