Rigby (Center for the Study of Forgiveness and Reconciliation, Coventry U., England) investigates different approaches to "policing" the past, from mass purges on one end of the spectrum to collective social amnesia on the other. He uses case studies based in Europe, Spain, Latin America, South Africa, and Palestine to analyze the advantages and disadvantages of each, clarifying the connection between how the past is acknowledged and prospects of a present and future culture of peace. c. Book News Inc.