A group of Kossacks (members of the Daily Kos a popular liberal blog) decided to hold a tin foil hat competition during the highly publicized Yearly Kos convention, which was being broadcast live in Las Vegas, Nevada. 

Was it meant as a harmless joke referring to the idea that the Yearly Kos was going to be like a Star Trek convention, or was it just a small group of people with too much to drink and one really bad idea?  Honestly, I don't know and it doesn't really matter now, because the buzz on the net is: 'What the hell were they thinking?'

For more on tin foil hat wearing Kossacks visit here, here, or the Daily Kos itself.