A drone takes a practice flight in Virginia with medical supplies — part of a project to evaluate the flying machines for use in humanitarian crises. Pete Marovich/Bloomberg via Getty Images hide caption

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A British Airways plane departs London's Heathrow Airport in 2010. Earlier this month, a British Airways plane was hit by an unidentified object but landed safely at Heathrow. Dan Kitwood/Getty Images hide caption

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A U.S. Air Force MQ-1B Predator unmanned aerial vehicle, carrying a Hellfire missile, lands at a secret air base after flying a mission in the Persian Gulf region on Jan. 7. John Moore/Getty Images hide caption

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UmmaGawd (Tommy Tibajia), a pilot in the Drone Racing League, flies his quadcopter in an abandoned power plant in New York. The Drone Racing League hide caption

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A Video Game IRL: Drone Racing League Aims To Be NASCAR In The Air

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Chinese brand DJI Technology Co. has become the leading supplier in the commercial drone market. The Phantom 2 Vision+ drone pictured functions by remote control. Kin Cheung/AP hide caption

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What You Should Know Before You Test The Holiday's 'Flyest' Gift

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An illustration shows what a helicopter drone would look like on the surface of Mars. NASA/JPL-Caltech hide caption

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Someday A Helicopter Drone May Fly Over Mars And Help A Rover

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Journalist Scott Shane says that the videos and DVDs of the late imam Anwar al-Awlaki (above) continue to inspire terrorist acts. Muhammad ud-Deen/AP hide caption

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Drone Strike That Killed Awlaki 'Did Not Silence Him,' Journalist Says

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