I asked him today why they would be spraying us and all he said was to control the weather and something about a "canopy ceiling" to effect brightness levels. this is from a gut who retired in 1982 and according to him he was just an air crew member who really never asked any questions, just did his job. He is obviously regretful for the chemicals he has been in contact with because his list illness is long. I'm not asking anyone to beleive any of this. This is just from a guy in his 70's who I met in the break room at work. Take it for what its worth.