I'm trying to remember what the book was now, but someone's temporary security pass for some sort of UN conference in London fell out of something I ordered from a UK bookseller. It even showed they held fairly high office. It was about the same date as the book was when new, about twenty years out of date though. Also, it wasn't validated so the person did not 'use' it (did not attend) and I've wondered if that might've been because they lost or otherwise got rid of the book I bought! I hope it didn't affect world security negatively.