DARPA Challenge - NPR Interview

Here is a link to the transcript of an NPR interview about the DARPA Balloon Challenge -

http://www.npr.org/templates/story/story.php?storyId=121452513&sc=emaf

Well, we ended up having 4,367 teams

Wow, I really want to know how the MIT people were able to verify all the balloons in 9 hours. Quite remarkable