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Part 3: The Overcrowded Skies

There's a problem brewing over the skies of Iraq, and it's not weather related. Thanks to a new generation of cheaper,...

[youtube]http://www.youtube.com/watch?v=D6fWa8gaprAThere's a problem brewing over the skies of Iraq, and it's not weather related. Thanks to a new generation of cheaper, smaller robots, Iraqi airspace is now filled almost to capacity with unmanned aerial vehicles. These radio-controlled planes give the armed forces unprecedented powers of surveillance, but how will the military respond to the dangerous traffic nightmare overhead?Continued in Part 4, "Rescue Bots of the Future."