The law of unintended consequences.
Didn't work quite as they planned. The chit grew alright, but it can't be controlled. It is nearly impossible to kill, actually reaches out and grabs you as you go by(this might be a slight exaggeration but it's sure as hell seems like that's the case) and now the government is coming around in some areas and ordering land owners to remove the plant (at the landowners expense of course) as it is now classified as a noxious weed.
Gotta love the gov...