Media: Crackpot 9/11 conspiracy theories are usually deemed beneath the dignity of network television. With Rosie O'Donnell now promoting the fringe, how embarrassed are ABC and Barbara Walters willing to be? Since joining ABC's all-female talk show "The View" last year, comedienne and film star O'Donnell has exchanged insults with Donald Trump, and been labeled a bigot by Catholic League president William Donohue for what he called her "relentless and profoundly ignorant attacks on the Catholic Church and its teachings." According to O'Donnell "radical Christianity is just as threatening as radical Islam." Famed interviewer Walters, co-host and co-owner of "The...