What in the hell is so special about the Harry Potter series? The books are being guarded like they contain everything from incantations of the Necronomicon top-secret military information that would easily doom any nation.
In fact, they're guarded BETTER than those things.
Obviously, I've not read them. To me, this is just another series of books that I might eventually read but I'm not really interested in it. I have not, at any point in the years and years I've been reading books, found a series that would cause me to willingly sit outside of a bookstore before it opened so I could have one of the first ones.
Yes, I understand, this last book is closing the series, and therefore everyone is up in arms about murdering people who post spoilers as though they were gays in the South trying to get married. But, there's been many other series of books. Am I to assume that fans of the Hitchhiker's Trilogy-That-Isn't-A-Trilogy determined that anyone who told another person of the inside of Mostly Harmless was treated as badly as those who make a little "Snape Kills Dumbledore" avatar on Livejournal?
So, really, what's the big deal? Do they offer some kind of secrets? I assume that the books are "good" by any standards. People wouldn't be wanting to murder other people if they weren't good.