I continue to use my iPad1 as I work in secure areas that deny access to devices with cameras (so there's no point in me getting a newer iPad).
I'm not picking on you, since you're not the first to say it, but I don't get why this is such a big deal. Surely you could put a highly visible sticker over the lenses, or if that's not permanent enough a drop of paint. Any organization that doesn't recognize that a camera that is not functional because the lens is obscured is no threat is not acting reasonably.