How sure are you, John and Steve?
Yes, but John, have you really considered the contribution of urban legends to Western Society? 98%of English speaking people believe in one urban legend or another. Think of how that effects your social life... I'm doing a good deed here you know. :)
Outside of that:
Y2K was/is a great example of "making a mountain out of a mole-hill". Sure, *some* really old satellites didn't plummet to Earth, and U.S. nukes didn't destroy the world but it's sort of like modern pharma. Look! You did what we recommended and you didn't die! Our recommendations saved you! Yea for us!!!
FYI in 2010 a large scale study is going to be published that proves Y2K was crap. Too much fear and not enough knowledge. A rather large group has been running a variety of systems with no Y2K patches since '99 and so far nothing, absolutely nothing, has happened that is related to clock times. From profitable e-commerce to HTTPS there have been no ramifications due to not being "Y2K compliant". Money says you've probably purchased something from one of the study participants.
A lot of people made a big deal out of nothing and based on recent comments, they still feel like they contributed. Sorry to be the one that told you, but Y2K was crap, just like 85% of the "security" issues we read about today. Sure there is a "possibility" of "something" "happening" but it's so remote it isn't worth spending money on.
As I said earlier, IT "security" is starting to sound like the "security" of the Western world. Fear and panic are driving too many decisions in today's world.