In the chaos following WWII, many of Germany's remaining resources were divvied up among allied forces. Some of the greatest spoils were the Third Reich's scientific minds. The United States secretly decided that the value of these former Nazis' forbidden knowledge outweighed their crimes, and the government formed a covert organization called Operation Paperclip to allow them to work without the knowledge of the American public. In this book, Annie Jacobsen follows more than a dozen German scientists through their postwar lives and into one of the most complex, nefarious, and jealously guarded government secrets of the 20th century.