Nazi doctors did more than conduct bizarre experiments on concentration-camp inmates; they supervised the entire process of medical mass murder, from selecting those who were to be exterminated to disposing of corpses. Lifton (The Broken Connection; The Life of the Self shows that this medically supervised killing was done in the name of "healing," as part of a racist program to cleanse the Aryan body politic. After the German eugenics campaign of the 1920s for forced sterilization of the "unfit...