I'm well aware of cloud seeding. Done for good reasons. don't think it's very commonplace. And it is NOT done to poison anyone, like the chemtrail kooks claim.
I spent lots of time following 9-11 info years ago. Most has been explained, including Bldg 7 which did burn a lot more than folks thought. I know we went to the moon..and several times. AND, delays and costs notwithstanding, are going back.