 The charge of sorting through the thousands of documents and cultural artifacts left behind after the mass genocide of European Jews proved to be emotionally taxing as well as technically difficult.Across the Main River in Offenbach, the Central Collecting Point for Judaica has opened its doors.Mournfully, in row upon row, it displayed objects of every-day Jewish life, religion and culture pilfered from East European shtetl, impounded from Dutch and Belgium museums, confiscated from French or German Jews.