Director Oliver Stone's upcoming Showtime documentary miniseries "Secret History of America" promises to put mass murderers such as Stalin and Hitler "in context.""Stalin, Hitler, Mao, McCarthy -- these people have been vilified pretty thoroughly by history," Stone told reporters at the Television Critics Association's semi-annual press tour in Pasadena. "Stalin has a complete other story," Stone said. "Not to paint him as a hero, but to tell a more factual representation. He fought the German war machine more than any single person. We can't judge people as only 'bad' or 'good.' Hitler is an easy scapegoat throughout history and its...