National Public Radio President Vivian Schiller, who made headlines for firing news analyst Juan Williams, a Fox News contributor, told an audience Sunday that NPR's viewers are a league apart from those of other media organizations -- a hypothesis proven by its comments section on the network's website. Schiller, who was speaking at St. John's Episcopal Church in Washington, D.C., said the comments section of most media websites are full of "people yelling at each other" and "going off-subject." But NPR's commentators - and, she infers, its audience - are "intelligent and informed." ...... "If defunding to public broadcasting were...