Well...if you listen to all the doomsayers they say part of the Apocalypse is everyone being 'marked' and 'tracked' by the devil. Up until now they have told us that there is a good possibility of it being from chips implanted in us....but how about tiny little radio frequency identifiers that we cant even see being attached to everything we buy? Then tracked through linking sales via electronic means (credit cards, etc) and the id's associated with the products we bought. Have a read of this http://news.com.com/2010-1069-980325.html