A handout picture shows Europe's biggest drone, Eurohawk, made by Northrop Grumman, at the start of its first test flight in Manching, Germany, on Jan. 11. If European officials have their way, the European Union will have its own drones within the next decade. Cassidian /DPA /LANDOV hide caption

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A federal drone that's used to patrol the U.S.-Canadian border. U.S. Customs and Border Protection/AP hide caption

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Drones can provide information about temperature, humidity and pressure that current radar systems can't provide. Above, the Talos drone, which has a 15.5-foot wingspan. Jamey Jacob/Oklahoma State University hide caption

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Tornado Tech: How Drones Can Help With Twister Science

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Pablo Lema shows off his quadcopter. Steve Henn/NPR hide caption

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Under The Radar: Some Pilots Of Small Drones Skirt FAA Rules

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President Obama speaks about his administration's drone and counterterrorism policies at the National Defense University on Thursday. Saul Loeb/AFP/Getty Images hide caption

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An American flag flying over Camp VI, where detainees are housed at the U.S. Naval Base at Guantanamo Bay. Bob Strong /Reuters /Landov hide caption

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From 'Morning Edition': Dina Temple-Raston reports

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