How Do Drones and Commercial Aircraft Avoid Midair Collisions? - Slate Magazine (blog) [feedly]

How Do Drones and Commercial Aircraft Avoid Midair Collisions? - Slate Magazine (blog)
http://news.google.com/news/url?sa=t&fd=R&ct2=es&usg=AFQjCNHgpdIoiVSmMV_L0EKcC1qe8ZNL3w&clid=c3a7d30bb8a4878e06b80cf16b898331&ei=mEmIVNDlDYaymQLQmYDgCA&url=http://www.slate.com/blogs/quora/2014/12/10/how_do_drones_and_commercial_aircraft_avoid_midair_collisions.html

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