In 1941 Heinrich Himmler, one of the most notorious war criminals and mass murders, was faced with an unexpected problem: he could not keep using SS soldiers to murder the Jewish population because the SS soldiers were breaking psychologically. As August Becker, a member of the Nazi gas-vans, recalls, “Himmler wanted to deploy people who had become available as a result of the suspension of the euthanasia programme, and who, like me, were...



