The Chemtrail Enigma

http://en.wikipedia.org/wiki/Chemtrails & Contrails 

Some people have noticed how the Las_Vegas_City_Hall seems to have a symbolic chemtrail design to it.
Even if its unintentional, the peculiar pattern just happens to blend in with the sky over LV on certain days. Many see it & don't perceive anything that interesting about the design. www.skepdic.com/chemtrails.html

www.chemtrailcentral.com, http://educate-yourself.org/ct,
www.theforbiddenknowledge.com/chemtrails/index.htm,
www.facebook.com/WhatintheWorldAreTheySpraying

http://desertshapes.blogspot.ca/2012/08/michael-murphy.html

http://jetstreamnews.com