For the first time, once-secret government records and interviews tell the full story of the thousands of Nazis—from concentration camp guards to high-level officers in the Third Reich—who came to the United States after World War II and quietly settled into new lives. Many gained entry on their own as self-styled war “refugees.” But some had help from the U.S. government. The CIA, the FBI, and the military all put Hitler’s minions to work as spies, intelligence assets, and leading scientists and engineers, whitewashing their histories. Only years after their arrival did private sleuths and government prosecutors begin trying to identify the hidden Nazis. Now, relying on a trove of newly disclosed documents and scores of interviews, Eric Lichtblau reveals this shocking, shameful, and little-known chapter of postwar history.