You've likely seen the Weapons of Mass Destruction pseudo-404 page, but you may or may not have seen this one.
Furthermore, I would propose perhaps Googlebombing this 404 page to get it a little more coverage. I think the phrase Patriot Act would be appropriate. If that sounds like a good idea, then feel free to Googlebomb it on your own sites or blogs or whatnot. Who knows, it might catch on... and certainly if somebody has a different suggestion of words for Googlebombing just post them.