Nazi eugenics
Henry Friedlander wrote that although the German and American eugenics movements were similar, the U.S. did not follow the same slippery slope as Nazi eugenics because American "federalism and political heterogeneity encouraged diversity even with a single movement." In contrast, the German eugenics movement was more centralized and had fewer diverse ideas. Unlike the American movement, one publication and one society, the German Society for Racial Hygiene, represented all German eugenicists in the early 20th century.