Ahhh, it must be nice to live in a world full of paranoia. Once it was the belief that flouridation of water was a communist plot to weaken the US population for in coming invasion. Now it's exhaust that's meant to... well, that's part of the problem. There are so many "reasons" for the "spraying", that I can't quite figure out just what you think the government hopes to accomplish. Here's a question: Why is this such a recent phenomenon? If contrails (for that's what they are, sorry to disappoint you) have been around since the jet age, then what has made these things poison all of a sudden? And do you enjoy making up conspiracy theories about everything? Because I know people caught up in their own delusions can never be convinced otherwise- people like me can be explained away as either being part of the conspiracy or just plain duped by it. Only people like you with all this great insight into fabricated and questionable "evidence" seem to know what is REALLY going on, I guess. The rest of us are too busy with our jobs, paying taxes to support disability and welfare payments so people like you can sit on your butt at home and get freaked out reading any and all material on the internet and taking it as fact. And your comments using past tests on military members inspires me to make my own evidence statements about hoaxes on the internet that have been taken seriously by simple-minded people like yourself: there's a bill pending that would tax each email; the FCC has issued a ruling to ban "Touched by an Angel" from using references to God in their tv show; there's a former government official from Nigeria who will give you millions of dollars if you let him use your bank account to launder money... These were all on the internet, so they must be true, as well, right? (note the sarcasm).