“A terrorist attack cannot possibly destroy our country’s way of life; it’s only our reaction to that attack that can do that kind of damage.” Schneier is one of the few people I know who consistently has sensible things to say about privacy and security issues. He rightly points out that often, the the most effective physical response to a terrorist attempt that is invisible, making it politically undesirable. A Catch-22.
This talk by Timo Arnall, mainly about his work with RFID is mind-blowing, particularly towards the end where he starts to show permutations of tag and reader form and field shapes. This stuff is useful and inspiring for designers as well as users of what is essentially an invisible technology.