NBC's Brian Williams says the lasting legacy of Hurricane Katrina for journalists may be the end of an unusual four-year period of deference to people in power. There were so many angry, even incredulous, questions put to Bush administration officials about the response to Katrina that the Salon Web site compiled a "Reporters Gone Wild" video clip. Tim Russert, Anderson Cooper, Ted Koppel and Shepard Smith were among the stars. The mute button seemingly in place since the Sept. 11 terrorist attacks has been turned off. "By dint of the fact that our country was hit we've offered a preponderance...