Drones over the US

The President and the Congress envision tens of thousands of Unmanned Aerial Vehicles — drones — populating American airspace. What are the possible consequences for the "friendly skies?" We hear about unlimited usefulness, as well as safety and privacy. Also, the world watches as North Korea prepares to launch a rocket, and the race for President — after Santorum.

Banner image: A view of the pilot's seating area in the flight operations room for the Global Hawk weather reconnaissance drone, at NASA's Dryden Flight Research Center on Edwards Air Force Base in California, August 31, 2010. Photo by Robyn Beck/AFP/Getty Images