I am close enough to you neck of the woods, and I notice a similar formation while driving to work this morning. There were about four contrails in a fan formation. While looking up and noticing this formation, I thought to myself, I wonder if anyone else is even paying attention to this! I should have known that a fellow TM'er would be paying attention!
After 9/11 on some thread here there was mention of a DoD project with a major north midwestern university in developing an aerosol to kill anthrax spores. It had a detergent like tide and and a veggie oil in it and was supposedly for contrail disbursement among other methods.
Re: Contrails - Yesterday in the Kansas City area, a large portion of the sky (guessing 25%) was streaked with them in all directions. Is there a legitimate web site that talks about these? I've seen bits and pieces about contrails in the past, but the sites didn't seem scientifically inclined. They leaned more toward a sensationalized hoax-type description.