The Pentagon invites you to play its red balloon game (opens in new tab)

Also discussed here : http://news.ycombinator.com/item?id=911119

and here: http://news.ycombinator.com/item?id=970088

Link to challenge site: https://networkchallenge.darpa.mil/default.aspx

Cool. Another part of my experiment complete with this publication: how to get press without really trying. (but I should probably save that for another post)