Report: Big Issues Remain Before Drones Can Safely Access National Airspace

coondoggie writes The story sounds familiar – while the use of unmanned [aerial vehicles], sometimes illegally, is increasing, there are myriad challenges to ultimately allow them safe access to national airspace. The watchdogs at the Government Accountability Office issued a report on the integration of unmanned aerial systems, as it calls them, in US national airspace (NAS) today ahead of a congressional hearing on the topic. As it has noted in past reports, the GAO said the main issues continue to include the ability for drones to avoid other aircraft in the sky; what backup network is available and how should the system behave if it loses its communications link.