They do that kinda thing when they do genetic engineering. Corn is all engineered now, if we don't plant it, nothing will grow. It cannot reproduce on it's own. Pretty sad.
They say it is of great benefit, becuase they get to engineer better corn and get paid for it. But who is to say farmers couldnt have bred traits in normally and produced thier own seeds at the same time. Lets hope Monsanto doesn't do this to cannabis seeds.
Then we may see them injecting dna into our Cannabis plant.