Joe writes – “Here are some pictures from Black Hat and DEFCON that I just put up. The DEFCON badge hacking contest was a complete success and people ended up making some pretty cool things (with only 36 hours to do so).
My favorite part was during the closing ceremonies when I had the house lights turned off and asked everyone to cover their face (to protect the paranoid) and hold up their badges. It was a sight to see! The videos and images just don’t do it justice.
Joe Grand LED DEFCON badges – Link.