I have a real problem with governments banning books. I have a problem with the government banning any form of art however, as an adult I like the ability to see something, listen to something, or read something and make my own decision.
However a school not having on a reading list or carrying it in the library doesn't bother me at all. Growing up, I read above and beyond what was available at the library and if I really wanted to read something or my parents wanted me to read something, they bough it for me if it couldn't be found at the libraries. Of course that could be what has driven to me to have three bookshelves full of books that are spilling over.
But it was a good practice, I was able to read things that weren't carried at the school library not necessarily because they were ban but just because they weren't there. My parents always encouraged me to read and where involved in my choices for a while but I do understand that some parents don't have the time to be that involved and may not want their children exposed to some of the reading that is available out there.
And I have to say some of the books on that list are simply not suitable for children and others I would definately want to pre-read or re-read before I allowed my (future) children to read it. Whether a book is a classic or not some just don't belong around children...Moll Flanders and Canterbury Tales are not something I would be comfortable with my child reading before a certain age. That being said, if I have copies of both books and when they are old enough they are welcome to read them.
And now in the internet age, I seriously doubt there are many books out there that a person couldn't get their hands on, at least in this country, if they really wanted to.