Monsanto is also an HERBICIDE company...think Agent Orange.......soon enough, they will get a new herbicide out there, that kills cannabis, and only the GMO cannabis seeds will flourish. If any grower, thinks their plants will be immune....well, we always hope we don't get pests, pm, or any deficiencies....but we always do. Why can't they make an airborne herbicide, that will get indoors, and wipe out cannabis?
Just because they can make agent orange doesn't mean they can make an airborne herbicide that will get into sealed rooms and only kill cannabis. I mean, yeah sure, if they could do that, it would be horrible for all us growers. There are lots of things that can be imagined that could cause all sorts of damage and harm but just because you can imagine it and see where someone could profit from it doesn't mean that person can or would do what you imagined they could.
I can't really say why they can't make something like that, nor can I say they can make something like that, neither can you because we don't have the proper background in chemistry to say if it's possible or not. I know that to get into a sealed room it would have to be extremely persistent, ready to do damage once the slightest access is given. I know in a general sense the more persistent you make things the more potentially dangerous and harmful they become. So my guess as to why they don't make a pesticide that can enter into sealed rooms is that it would probably kill far more then just cannabis.
I will agree that if such a thing does become possible Monsanto is just the type of company that wouldn't hesitate to try to profit from it.