Tuskegee Syphilis Study
Between 1932 and 1972 (decades, people, decades!) black sharecroppers in Tuskegee, Alabama, were enrolled to study the progression of untreated syphilis. Who lead this study? The U.S. Public Health Service. The men in the program thought they were getting free health care, but they were never told they had syphilis and they were never treated for it. Terrible.