United States infected Guatemalans for STD tests

The United States revealed on Friday that the government conducted medical experiments in the 1940s in which doctors infected soldiers, prisoners and mental patients in Guatemala with syphilis and other sexually transmitted diseases. The experiments, led by a federal doctor who helped conduct the famous Tuskegee syphilis study in Alabama, involved about 1,500 men and women who were unwittingly drafted into studies aimed at determining the effectiveness of penicillin. Washington Post reports.