Fox News Channel's Geraldo Rivera has never been one to slink from a fight, especially when facing bigots. "There aren't many people in this country who have been called both a Spic and a dirty Jew in the same street brawl with neo-Nazis," he pens in the upcoming His Panic. But it still comes as a surprise that Geraldo rails on the news biz, especially Fox's Bill O'Reilly and Sean Hannity and CNN's Lou Dobbs, for what he calls anti-immigrant hate. In the semiautobiography, he blames them for helping to torpedo immigration reform with their nativist coverage. But it's Dobbs he really dislikes. "The anchorman was once a respected business journalist," pens Geraldo, "but after his ratings plummeted in the face of the Fox News ascendancy . . . he has resurrected a failed career on the backs of these poor immigrants." No word yet from Dobbs.