The culture war just got a little louder Concert tour aimed at defeating Bush Music stars target swing states with a series of shows featuring more than 20 acts By Cary Darling Star-Telegram Pop Culture Critic The culture war just got a little louder. With Wednesday's announcement that music superstars such as Bruce Springsteen, the Dave Matthews Band, the Dixie Chicks, R.E.M., John Fogerty and Jurassic 5 are launching a series of October concerts specifically designed to defeat President Bush in November, the entertainment industry is pumping up the volume on an already high-pitched political season. "I feel this is...