LONDON (AP) — A long-awaited inquiry opened Tuesday in Britain into how contaminated blood was used to treat thousands of people in the 1970s and '80s, killing at least 2,400. Thousands of hospital patients — many of them hemophiliacs — were infected with HIV or Hepatitis C through tainted blood products, largely imported from the United States. Previous investigations have been branded a whitewash by victims' campaigners.Read more on NewsOK.com