Defcon is the worlds largest security confrence of it’s time. With over 9,000 people attending, the wireless network that servers them all is the most hostile on the planet.
I read an article here: http://blog.wired.com/27bstroke6/2008/08/a-first-ever-lo.html, and it shows you how the Defcon wireless network is set up and how it is monitored and kept secure. This would be an intresting read, so check it out!
Harry.