http://www.bizjournals.com/triangle/blog/techflash/2015/11/precisionhawk-tests-drones-in-the-triangle-adds.html

Somewhere in the Triangle sky, a drone is flying suspiciously
close to a paraglider – and it’s on purpose.

Raleigh drone developer PrecisionHawk, tasked earlier this year by the feds with
researching ways to allow drones to safely fly beyond their pilot’s line of
sight, is in the initial phases of testing for what’s called LATAS, Low Altitude
Tracking and Avoidance Systems.

The tests are taking place in uninhabited areas, specifically university-owned
land in Butner, under optimal weather conditions.

The paraglider – a volunteer – is just the first step. The company plans to use
crop-dusters and other small manned aircraft in its testing as the weeks
progress.