Ethics: If a prominent Republican neglected paying taxes, then insulted the disabled, his political career would be over instantly. Is a double standard saving House Ways and Means Chairman Charlie Rangel?When a quarter-century ago this week, Reagan Administration Interior Secretary James Watt made his infamous "a black, a woman, two Jews and a cripple" quip, he was out the door within weeks. Will the same happen to Rep. Rangel after being asked last Friday why Republican presidential nominee Sarah Palin's popularity frightens Democrats? "You got to be kind to the disabled," replied Rangel, a New York Democrat. WCBS-TV reporter Marcia...