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Photo by: Lance Bertolino

** FILE ** This September 2011 file photo provided by Vanguard Defense Industries, shows a ShadowHawk drone with Montgomery County, Texas, SWAT team members. The prospect that thousands of drones could be patrolling U.S. skies by the end of this decade is raising the specter of a Big Brother government that peers into backyards and bedrooms. (AP Photo/Lance Bertolino, Vanguard Defense Industries)

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