This September 2011 photo provided by Vanguard Defense Industries, shows a ShadowHawk drone with Montgomery County, Texas, SWAT team members. In a major step toward opening U.S. skies to thousands of unmanned drones, federal officials Thursday, Feb. 14, 2013, solicited proposals to create six drone test sites around the country. The FAA has granted several hundred permits to universities, police departments and other government agencies to use small, low-flying drones. For example, the sheriff's department in Montgomery County, Texas, has a 50-pound ShadowHawk helicopter drone intended to supplement its SWAT team. (AP Photo/Lance Bertolino, Vanguard Defense Industries)
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