The Defense Advanced Research Projects Agency likes to run contests for geeks. Previously they held a robot race in the desert. DARPA is interested now in social networking. The agency recently held a challenge mobilizing thousands of people worldwide to find out how people gather and report information using tools like Twitter. DARPA's Dr. Peter Lee talks to Ari Shapiro about the experiment to find balloons.
DARPA Tasks Social Networkers To Find Balloons
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