英国：ドローン（無人航空機）によるトラブルが多発？

下記の記事が出ている。

　Drone flew 'within wingspan' of plane approaching Heathrow
　Guardian: 31 March, 2017
　https://www.theguardian.com/technology/2017/mar/31/drone-wingspan-plane-approaching-heathrow-near-misses

　Drone complaints soar as concerns grow over snooping
　Guardian: 3 April, 2017
　https://www.theguardian.com/technology/2017/apr/03/drone-complaints-soar-as-concerns-grow-over-snooping