Didn't stop them dumping Agent Orange onto their their own either.
That's was under order and in war.
It's a very different thing for civilians wilfully acting in such a manner upon fellow civilians. There's a huge difference here.
I don't consider much impossible, but do find what you're proposing somewhere pretty close to unreasonable.
There must be more to it than what has been put forward in this thread, for things to start ticking some important boxes.......and governments acting against their own, isn't solely good enough.