Ok, all tinfoil hats aside.....
http://www.techtv.com/siliconspin/features/story/0,23008,3375488,00.html
Proponents of ID systems often try to start small, planning to expand the system later. When Australia attempted to introduce a national ID card, one planning document stated: "It will be important to minimize any adverse public reaction to implementation of the system. One possibility would be to use a staged approach... whereby only less sensitive data are held in the system initially with the facility to input additional data at a later stage when public acceptance may be forthcoming more readily."
and
http://www.zdnet.com.au/newstech/enterprise/story/0,2000025001,20150626-3,00.htm
"Myers is not fazed by the idea of chips altering personality. "I don't see it as any different morally or ethically than drugs which do the same thing," he argues. BT's Pearson agrees: "I had screws inserted in my legs and I didn't feel any less human. Some people have ear or eye implants and there are lots of people running about who are partially bionic. It is not an enormous ethical issue, as I don't believe it dehumanises us," he says. While it would seem people are unfazed by the threat to humanity of relying more and more on chips and machines to run our bodies, the privacy threat is not about to go away. Interestingly, while sci-fi has focused on how governments and authorities will use chips to curtail our freedoms, Pearson is bothered by a more mundane threat.
I was trying to find for you an article from australia about how human chip implants were tried there..but can't find it. It was from a good source... "
Google: Veri chip
google: Digital implant
http://www.digitalangel.net/
For those who think this is tinfoil hat material, it's coming to a medical center near you.