Very good and thought-provoking question. I choose to respond the way it made me feel before reading the details; it made me think of ones’ emotions, inhibitions and fears. That is, if you are courageous enough to overcome your fears, show your emotions, express yourself, so to speak, then you will have nothing to hide.
As far as the other meaning of the question is concerned (a la Big Brother) – I think we will just have to get used to it. It’s frightening at first thought, but I can also see a lot of advantages. Just as you are happy your dog has a chip and can be found with GPS – wouldn’t it be great to find a kidnapped daughter, soldier or spouse?
The recent failed terrorist’s profile shouldn’t even have allowed him to buy a ticket, let alone board a palne with explosives. His own father had notified the authorities years earlier of his son’s El Qaeda ways. Had his DNA been on file, he would have been apprehended long before he could’ve done any harm.
Big Brother? Thought Police? Minority Report? Yep. I’m not sure if it isn’t a good idea.