This points up an important principle of government expansion. I imagine that no one pushing for this legislation was thinking in terms of de facto censoring older books. No one wants the schools, libraries, and literate grandparents to have to destroy valuable books. But once the law is there, it can be used that way. That most people will not use this as a censorship tool is not enough – a few will, and legally. A tool for despots was not what was intended, but is what resulted.