In 1939, when German eugenics graduated from sterilization to euthanasia, Lenz helped draft the guidelines allowing “misfits” to be killed “by medical measures of which he (the victim) remains unaware” (Müller-Hill 1998, 15). He was one of Josef Mengele’s mentors (see later in this chapter) (Lifton 1986). It seems, however, that Lenz was not particularly anti-Semitic; he claimed that the German term for anti-Semitism was pseudo-scientific, since there was no Semitic race (Weindling 1989, 553).
