St. Louis-based Veterans for Peace is circulating a letter it plans to to send President Barack Obama demanding that the White House release photos of abusive treatment of detainees at the hands of U.S. troops. Obama had supported the release of the pictures to the public, but changed his mind in May, saying that he would try to block the court-ordered release of the photos. Obama's reversal came after U.S. commanders feared that the pictures depicting abusive treatment of detainees would cause