Taking down drones is turning into a big business

A drone hovers at a viewpoint overlooking the Space Needle and skyline of tech hub Seattle, Washington, U.S. February 11, 2017. REUTERS/Chris Helgren

Just shoot them down? 

After troublesome drones infiltrated London’s Gatwick airport late last year, disrupting passenger flights and costing potentially millions of pounds in revenue, that was the instinctive question posed by the watching world.