Clear Channel Radio has suspended the shock jock's program indefinitely for breaking new company rules of decency. Clear Channel is the nation's largest radio chain and today announced a new policy aimed at limiting on-air indecency. Clear Channel's president said Stern's show today was vulgar, insulting and offensive. Stern's spokesman wasn't available for comment. Pressure has been mounting on the broadcast industry, even before singer Janet Jackson's breast was exposed during the live Super Bowl halftime broadcast. Stern has a history of racking up fines. In 1995, Viacom paid $1.7 million for various violations by Stern. That's the largest cumulative fine to date. Clear Channel says Stern won't be allowed back on the air until it feels assured the show will conform to broadcast standards.