Scientists are reporting the discovery of artificial genes in "escapee" weed plants. It seems that, once a crop plant gets out of its field it's then called a weed, and these weeds have been found not only all over the place, but with other artificial genes in their makeup that they could only have gotten through wild interbreeding. While not a doomsday proclamation in and of itself, the findings do provide worrying evidence that it is at least possible that fully wild weeds could one day acquire artificial resistance to widely used weed killers.