It has taken more than 40 years since Edward R. Murrow's retirement for CBS to wreck the brand name Morrow created for the network's news department. The current Rathergate fiasco is a sad commentary on the difficulty corporate cultures have remembering the values that made them great. And no one would have understood the gravity of this "mistake," as Dan Rather finally called it, more than Ed Murrow.... Murrow foresaw the end as well as the beginning. In a speech before the Radio-Television News Directors Association in 1958 Murrow warned: " . . . unless we get up off our...