The era of unmanned drones is already upon us, making a new entry into this sphere is the new. MQ-4C Triton, It has a wing span of 130 feet, canfly for long hours and can spy on an area of 2.7 million square miles ( yes ) in real time !!! fitted with the smartest optics and gadgetry still not known to man !! here are more details Excerpts borrowed from the US Navy site.