OP-ED CONTRIBUTOR Omaha ELIOT SPITZER, the New York attorney general, has made a career out of spanking arrogant fat cats on the front page. We cheered when he busted those shifty stockbrokers for selling us shares of Enron and WorldCom, and we hailed him for exposing those money managers who sold our mutual fund shares on the cheap after 4 p.m. Eastern to influential big boys at our expense. Then last year Mr. Spitzer went after insurance companies, and everybody applauded again. Of course! Talk about a target-rich environment! For weeks, we opened our newspapers eager to read about insurance...