In Nazi Germany, they were called the Schutzstaffeln . The world would know them as the dreaded SS--the most loyal and ruthless enforcers of the Third Reich. It began as a small squad of political thugs. Yet by the end of 1935, the SS had taken control of all police and internal security duties in Germany--ranging from local village "gendarmes" all the way up to the secret political police and the Gestapo. Eventually, its ranks would grow to rival...