Omar Neal had every reason to be skeptical. Here in Tuskegee, Alabama, where roadways are dotted with signs that read “Vaccinate Me. Stop the Spread”, the history of racist medical abuse weighs heavily. For four decades, between 1932 and 1972, the US government sponsored a biomedical study coercing 600 Black men, all sharecroppers, into a study on the effects of untreated syphilis. The male subjects were not told they were part of the research,...