개요
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http://www.af.mil/shared/media/document/AFD-051013-001.pdf- YouTube
https://www.youtube.com/watch?v=Psdg3OAw_a8Text of S. 517 (109th): Weather Modification Research and Development Policy Authorization Act of 2005 (Reported by Senate Committee version) - GovTrack.us
https://www.govtrack.us/congress/billtext.xpd?bill=s109-517Attention Required! | Cloudflare
http://globalresearch.ca/articles/WOR406A.html유튜브 - 위키백과, 우리 모두의 백과사전
https://ko.wikipedia.org/wiki/%EC%9C%A0%ED%8A%9C%EB%B8%8CNBC NEWS - Chemtrails over California?
https://www.youtube.com/watch?v=UIe0ZVF1rPc