Drawn from World War II British and U.S. documents, this book shows that Germany held a wide technological edge in many fields over the Allies. Exploitation of German scientific and technological experts after World War II was seen as the chief reparations the Allies were likely to get. The race for these men involved conflict among the Allies and with U.S. immigration laws. The argument balances the ethical/moral dilemma on using former Nazis against the national security advantages to be gained by that use.