Military and law enforcement applications of UAVs have been placed under a higher level of scrutiny due to issues associated with privacy and engagement. However, NASA has been operating UAVs and unmanned space systems for decades without the same degree of public perception issues. How do unmanned aircraft robotic systems (i.e., MQ-9 Reaper) differ from civilian unmanned space systems (e.g., NASA Curiosity Rover)? Consider their similarities regarding mission performance, functionality, design, and support Solution Military As of January 2014, the U.S. military operated 7,362 RQ-11B Ravens; 145 AeroVironment RQ- 12A Wasps; 1,137AeroVironment RQ-20A Pumas; 306 RQ-16 T-Hawk small UAS; 246 Predators and MQ-1C Grey Eagles; 126 MQ-9 Reapers; 491 RQ-7 Shadows and 33 RQ-4 Global Hawk large systems. Reconnaissance The Tu-141 \"Swift\" reusable Soviet reconnaissance drone is intended for reconnaissance to a depth of several hundred kilometers from the front line at supersonic speeds.[91] The Tu-123 \"Hawk\" is a supersonic long-range reconnaissance drone (UAV) intended for conducting photographic and signals intelligence to a distance of 3200 km; it was produced beginning in 1964.[92] The La-17P (UAV) is a reconnaissance UAV produced since 1963.[93] In 1945 the Soviet Union began producing \"doodlebug\".[94] 43 Soviet/Russian UAV models are known.[95] In 2013, the U.S. Navy launched a UAV from a submerged submarine, the first step to \"providing mission intelligence, surveillance and reconnaissance capabilities to the U.S. Navy\'s submarine force.\"[96] Attack MQ-1 Predator UAVs armed with Hellfire missiles have been used by the U.S. as platforms for hitting ground targets. Armed Predators were first used in late 2001, mostly aimed at assassinating high-profile individuals (terrorist leaders, etc.) inside Afghanistan. UAVs avoid potential diplomatic embarrassment when a manned aircraft is shot down and the pilots captured. Defense against UAVs The US armed forces have no defense against low-level drone attack, but the Joint Integrated Air and Missile Defense Organization is working to repurpose existing systems. Two German companies are developing 40-kW lasers to damage UAVs. Three British companies jointly developed a system to track and disrupt UAV control mechanisms. Other systems still include the OpenWorks Engineering Skywall and the Battelle DroneDefender. Targets for military training Since 1997, the US military has used more than 80 F-4 Phantoms converted into UAVs as aerial targets for combat training of human pilots. The F-4s were supplemented in September 2013 with F-16s as more realistically maneuverable targets. Civil Civil uses include aerial crop surveys, aerial photograpy, search and rescue, inspection of power lines and pipelines, counting wildlife delivering medical supplies to otherwise inaccessible regions, and detection of illegal hunting, reconnaissance operations, cooperative environment monitoring, border patrol missions, conv.