The search for the Life Diamonds--the subject of the compelling documentary produced by the History Channel. They were known as Life Diamonds--rough uncut diamonds of high quality bought by Jews in Eastern Europe to use as passports to safety. After 1939 and the Nazi blitzkrieg, after the extermination camps began belching black smoke into the skies and the railroad station at Auschwitz II-Birkenau became the busiest train station in the world, they...