FILE - This Jan. 25, 2019 file photo shows a drone from the New York State Fire Agency to help track a cruise ship that broke from its moorings and became lodged against a bridge in Albany, N.Y. In Utah, drones are hovering near avalanches to measure roaring snow. In North Carolina, they're combing the skies for the nests of endangered birds. In Kansas, meanwhile, they could soon be identifying sick cows through heat signatures. A survey released Monday, May 20, 2019 shows transportation agencies are using drones in nearly every U.S. state. (AP Photo/Hans Pennink, File)

DIU picks 5 commercial companies to help military deal with threat from small drones

Some of the firms have shown they can eliminate threats from small drones by capturing them in nets, jamming their radio control signals, or simply ramming…

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