Why the US military exposed minority soldiers to mustard gas
It was a painful, horrifying and secret part of America’s history during World War II. The U.S. government conducted experiments with mustard gas and other chemicals on some U.S. troops at the time. Now a new investigation by NPR finds the military used race-based experiments as part of those tests. African-American men, shown here in protective gear, as well as Japanese-American and Puerto Rican soldiers, were singled out. Susan Smith, a professor of history at the University of Alberta, comments in the story. Story runs on affiliate stations across the U.S.