Although Rush Limbaugh doesn't actually work from a bunker, he does have a bunker mentality. His studio is on the third floor of a (purposefully) anonymous building 100 yards off the white sands of Palm Beach, Florida, and about a mile from his gated mansion (the one next to Chuck Norris's). Along with the Gulfstream jet (cost: $54 million), fleet of sports cars and eight-year contract, worth $400 million, this mansion is his reward for being the most listened-to talk-radio host in America, a title he has held for 20 years. But it is also his compensation. Professional Right-wing controversialists...