无人机或从技术上讲，空中无人驾驶飞行器（UAV）是一种 遥控飞机（RPA）可没有一个飞行员乘坐。这种无人机的飞行是由车载电脑自动控制或由地面上或通过支持试点 帮助（华和参孙，2009）。美国的 联邦航空管理局已命名为无人机这样的飞机和用它主要用于军事和战争的目的。在个人以及在国家层面上，政府已经建立了用户操作无人机在美国由FAA规定的严格的政策，用户必须首先获得一个 授权 证书（COA）才可以操作无人机。除了直接通过美国领空执行的FAA认证外，美国政府为执法目的而使用无人机的规定一直只在国家一级确定（克莱默，2011）。美国有22多个州执行了这项立法，涉及使用无人驾驶飞机系统以及处理他们收集的数据。美国的国内政策规定，政府必须签发一项无人机系统，用于监视和军事用途。
A Drone or technically speaking an unmanned aerial vehicle (UAV) is a remotely piloted aircraft (RPA) which can be used without a human pilot aboard. The flight of such drones is either controlled automatically by onboard computers or by the help of a pilot on the ground or through a supporting vehicle (Hua & Samson, 2009). The Federal aviation administration of the USA has named such aircrafts as drones and has used it mainly for military and warfare purposes. At an individual as well as at a state level, the government has set a rigid policy for users to operate drones in the USA. As stated by the FAA, users have to first obtain a Certificate of Authorization (COA) before they can operate a drone. Apart from the FAA certification which operates directly through USA airspace, the regulation for the usage of drones by the government of USA for law enforcement purposes has always been determined merely at a state level (Kramer, 2011). More than 22 USA states have implemented the legislation which has addressed the use of drone systems as well as the handling of data which is collected by them. The domestic policy of the USA states that a probable cause of warrant must be issued by the government for a drone system which can be used for surveillance and military purposes.
According to a research by Fairleigh Dickinson University in Feb 2013, it was found through a poll that more than 46% of American voters believe in the fact that it is certainly illegal for the government of the U.S.A to use consistent drone attacks to innocent citizens living abroad. It is certainly clear from this assumption that the public of the USA thinks that citizens should not be affected when trying to get the terrorists and this is certainly not the right strategy. On an international level, there has been immense criticism of the strategy of the government of USA on its use of drones to track as well as kill terrorist groups and militants.