10/22/2004: Contrails over southern US

[Undertoad]

I thought this image of contrails, the condensation left by jets as they fly, was pretty interesting. But some people think it's a massive conspiracy bent on raining pollution down from the skies. In fact the web seems chock-full of such hand-wringers thinking that they're changing the weather or spraying mystery chemicals. But don't worry, there are also people who will sell you stuff to keep you safe from all this.