Yes, there are plenty of approaches being made to develop such systems that can take down rogue drones. Privacy violations using drones are another issue that

Yes, there are plenty of approaches being made to develop such systems that can take down rogue drones. Privacy violations using drones are another issue that will promote the development of such guns/systems. Here's a great article that mentions one such system that can hijack drones mid-air: http://www.whatafuture.com/drone-hijacking-device-takeover-threat-privacy/ http://www.whatafuture.com/drone-hijacking-device-takeover-t...