Considering the immense disruption and costs meself, I think it might be an idea for airports to consider investing in this 'gun'.

I've just seen on the News that Gatwick has shut down again after yet another drone sighting.
I'm surprised some idiots aren't trying this on at Heathrow. I suppose it's only a matter of time.

In our village we have a lovely chap who has a wildlife photography business. He takes beautiful photos of our Norfolk countryside and the creatures to be found there, and sells them to magazines and for mounting as wall art etc. He uses a drone I believe to get a view of the series of small lakes and the river Wensum from above. But Norwich Airport isn't far off, plus our Air Ambulance is frequently flying overhead to some rural accident. Could be a bit dodgy...