See: Troy Duster, Backdoor to Eugenics (New York and London: Routledge, 1990) and Jeremy Rifkin, Algeny (New York: Viking, 1983) esp. pp.230-234. Not all are opposed to eugenics, especially if eugenics means better human health. John Harris, for example, writes, ". . . where gene therapy will effect improvements to human beings or to human nature that provide protections from harm or the protection of life itself in the form of increases in life expectancy . . . then call it what you will, eugenics or not, we ought to favor it." "Is Gene Therapy a Form of Eugenics?" Bioethics, 7:2/3 (April 1993) 184.