Because it doesn't happen. People don't spew mind control chemicals from planes. It's purely absurd to even insinuate otherwise.

I never talked about mind control.

There is no evidence

You're saying there's no evidence but you're not stating evidence to what so your statement could hardly be more vague.

I never said what I was seeing was undoubtedly part of top secret weather modification program so your statement doesn't apply to what is stated in my post.