Tuskegee Syphilis StudyFrom 1932 to 1972, the U.S. Public Health Service (PHS) sponsored and ran the nation's longest-running deceptive public-health experiment in and around Tuskegee, in Macon County, Alabama, in which hundreds of African American men were observed, but not intentionally treated, for their disease. The PHS did not give the men syphilis, as it is often rumored, but watched them over the decades and led them to believe they were being treated. The study was conducted with the cooperation of the Tuskegee Institute and the public-health departments of Macon County and the state of Alabama, but without the consent of the men who were told they were being treated. It ended only after a media exposé in 1972 prompted a national outcry. Controversy stemming from the experiment, known primarily as the Tuskegee Syphilis Study, prompted major reforms in medical research protections and a formal apology to the program's unwitting participants by President Bill Clinton in 1997.