Herman Lang worked as a machinist, draftsman and assembly inspector for the Carl L. Norden Company in New York, which had been contracted to manufacture an advanced top-secret military bomber part, the Norden bomb-sight. He provided the Abwehr a large drawing of the bomb-sight and later went to Germany to work on and finish an improved version. In Germany, Lang met with Canaris and Göring. Ritter employed several other successful agents across the United States, but he also made the mistake of recruiting a man who would later become a double agent for the Federal Bureau of Investigation (FBI), William Sebold.
