The progressive fascination with eugenics largely ended with World War II and the horrors wrought by National Socialism. But while the West has discarded the theory of the eugenics era, the practice urged by Fisher and others — the elimination or pre-emption, through careful reproductive planning, of the weaker members of the human species — has become a more realistic possibility than it ever was in the 1920s and ’30s. Read the rest of the story at http://www.nytimes.com