Unmanned aerial systems, popularly known as drones, have been in the news for all sorts of reasons-good and bad. The media has focussed equally on them for their use in hunting down terrorists and quickly eliminating them, as also for the inadvertent killing of innocent civilians and collateral damage to private property. Infringement of sovereignty is another pertinent area of international concern. Though historically associated with military missions, drones are increasingly proving their utility for internal security and disaster management. Lately, civilian and commercial uses are also...