“Since 1991, the American Library Association’s Office for Intellectual Freedom has compiled an annual list of books that librarians, teachers or others report have been challenged; there were 547 challenges in 2004, up 25 percent from 2003. This wave started with the religious right around 1980. And it’s contagious. It has spread, so that anybody, including the liberal left, can say, ‘I don’t want my kid to read that book, therefore I don’t want that book around for any kid to read.’ “