That article is pretty crazy... I notice that the site also talks a lot about the good old Rapture, that's what I call fun for all the family. ;)
Anyway, I am quite sure that RFID tags could well prove immensely useful in blurring the lines between man and his (its) technological world, but really I'm against such technology because I just know that the Government will see tagging as the perfect way to keep tabs on its citizenry. I value my own privacy and anonymity too much for that.