A couple of thoughts. How many WACO type standoffs will this lead to. And, how long before it is illegal to grow your own vegetables?
They are working on doing this for plants as well
Not long, they are patenting plants and animals like crazy. First it's a chipped dog, then chips for "the children", then chipped chickens, chipped gov workers. A chip in your vehicle, a chip in your US soldier. Who do you suppose is next?
http://www.cfr.washington.edu/research.pfc/presentations/rfid_seedlings/pages/slideA_gif.htm
More at link