No one knows how to estimate the value and extent of the Jewish property that was looted in the Holocaust, although it is clear to everyone that it is many billions of dollars embodied in diverse assets - from private homes, through synagogues and community institutions, to rare works of art that were looted by the Nazis and their collaborators. However, beyond the financial issue, this is first and foremost a matter of principle for the dwindling number of Holocaust survivors, for their families and, in fact, for the entire Jewish people. The common phrase that comes to mind in...