Amazon continues to lead e-commerce face many complexities to remove its "Prime Air" and on the delivery of applications across the drones because US authorities refused to do so.
But it seems that the ambitions of Amazon launching delivery service through the drones hit US authorities rejected this project although it is still in the experimental phase, and the US rejection is based in large part on the security side, where unmanned aircraft vehicle unsafe and may cause serious accidents.
And Amazon has launched its project on delivery of goods by unmanned planes in 2013 and already started testing unmanned aircraft in various regions of the world except the United States, which rejected the u.s. Federal Aviation Authority FAA grant Amazon remarks that crisis.
And Amazon has threatened that it will move all the activities outside the United States, including research and development.