Seriously. Why is that, when confronted with a simple challenge to produce direct evidence, people promoting chemtrails go silent? I'm just saying it's too easy to point a camera at some contrails and say "chemtrails" and expect everyone to believe you. Where's the evidence? It shouldn't be too hard for LOTS of people to verify this theory independently. If jet fuel is being infused with some metal or chemical, it should be showing up all over the place, and should be readily detectable/measurable using basic chemistry. Why isn't that happening?