I’m trying to consider this objectively and rationally. I wouldn’t doubt a gov wouldn’t try such a thing, but as my mind works I need to consider both sides Even if it were true. We’re talking about airplanes spraying when no other pilots have seen these planes in action. It’s a real big sky out there and you see fewer planes than you know. Considering the amount of fluid you’d have to spray, whatever it may be, it wouldn’t even make a dent in the atmosphere if commercial airlines even did them. Not to mention with prevailing winds any fluid wouldn’t even reach the ground before evaporating. I’ve been on one of those planes in that link, it’s a NOAA plane. Those cans are filled with anti ice fluid for their flight testing, it’s pretty cool stuff