I seen this today . This might help some folks, if they can be found. It's about Secret Army Spraying done back in the 50's and 60's in a low income area, mostly kids under age 12 in St. Louis and other Cities.. Some cover story of testing Smoke screens to protect Cities. Turns out to be what is explained at this link.
Here is another youtube link https://www.youtube.com/watch?v=XlH6srJPDoo&feature=player_embedded
Yes, This is one such report of Planes Spraying..plus roof top sprayers too. If they lied then..Why would they tell the Truth now?
Hopefully People at that time can get in touch with that News Channel or the Lawyer.