Critics Question No-Bias Finding By CBS Panel If there is one line in the 224-page report on CBS News that has set critics aflame, it is that there is no "basis" for concluding that Dan Rather and his colleagues had a "political bias" in pursuing their badly botched story about President Bush's National Guard service. What, they say? No evidence? "In any fair-minded assessment of how CBS performed and why they so badly butchered their own standards, that has to be part of the explanation," said former New York Times reporter Steve Roberts, now a professor at George Washington...