When the Supreme Court last term declared racial and certain ethnic affirmative action at colleges constitutional, the majority decision invoking the need for diversity omitted diversity of ideas. As The Chronicle of Higher Education (Sept. 24) reports in "Conservatives in a Liberal Landscape," at "left-leaning campuses around the country, professors on the right feel disenfranchised." Yet, Sen. John Kerry -- as quoted in the Sept. 17-19 New York Sun -- dismisses "the idea that there is an ideological bias on college and university faculties" as a fantasy of "conservative talk-show hosts."