Sounds like a good comic book superhero Origin Story.

I wonder if the unwitting consumers will get Super Vision or Pig Powers.

I like the bit about spray painting euthanized GM animals. Will the lab guys come up with their own "tags," or will there be an official stencil? (Wow, great opportunity for a design contest!)

Future Eyewitness News reports:

* GM-marked carcasses turn up in shady ethnic butcher shops. ("Ay, what is the problem? Two heads, twice the brains, twice the cheeks!")
* PETA raids pastures and feed lots, spray paint "GM ANIMAL - DO NOT EAT" on hundreds of ordinary beef cattle.