Dan Stone tells the story of the last great unknown archive of Nazism, the International Tracing Service. Set up by the Allies at the end of World War II, the ITS has worked until today to find missing persons and to aid survivors with restitution claims or to reunite them with loved ones. From retracing the steps of the 'death marches' with the aim of discovering the burial sites of those murdered across the towns and villages of Central Europe,...