Nostra Aetate, one of the key Vatican II documents, was a major step in defining the nature of Jewish Catholic relations. Forty years later, leading Jewish and Catholic commentators assess its legacy and consider the future. Contributors include Rev. Dr. George Tavard, Dr. David Novak, Dr. Gregory Baum, Dr. Ovey Mohammed, SJ, Cardinal Edward Idris Cassidey, Very Rev. James Puglisi, SA and Rabbi Dr. Riccardo Di Segni.