U.S. Philadelphia apologizes for experiments on African American inmates

WASHINGTON, Oct. 6 (Xinhua) -- The U.S. city of Philadelphia issued a formal apology on Thursday for experiments conducted on African American inmates at a prison decades ago.

From the 1950s to the 1970s, inmates of Holmesburg Prison were intentionally exposed to pharmaceuticals, viruses, fungus, asbestos, and even dioxin, a component of Agent Orange.