Unimpressed by the New York Post's apology, Spike Lee has called on celebrities and athletes to boycott the paper and help "shut it down" for its chimpanzee cartoon. Lee and his 11-year-old son, joined by Al Sharpton, led 300 protesters in New York yesterday, the Daily News reports. "It's not just black folks," said Lee. "It's an insult to everybody." (More New York Post stories.)