Yesterday, I told you the story of how Darwinism, mixed with pseudo-science and prejudice, resulted in the forcible sterilization of countless Americans. But the impact of the American eugenics movement was felt far beyond the United States, with horrifying results. In his new book, Better for All the World, Harry Bruinius tells how America became the “guiding light” of the eugenics movement. While the eugenicists’ preferred instrument was mass sterilization, that was not the only tool in their demonic toolkit. They also advocated segregation of the “unfit” and even euthanasia. If these last two sound familiar, that’s because, as Bruinius...