And furthermore, shut up, all of you who are telling musicians, actors, filmmakers, authors and such to shut up. "I paid to hear Don Henley sing, not to listen to his political views," whines the ticket holder."Who the hell does Sean Penn think he is, going to Iraq?" fumes the talk-radio guy."Bruce Springsteen thinks making millions with a song-and-dance routine allows him to tell you how to vote," grouses conservative New York senate candidate Marilyn O'Grady, announcing her "Boycott the Boss" campaign.Even quasi-liberal Irvine Mayor Larry Agran sympathized with the people who booed Henley at the Pacific Amphitheatre recently after...