In this July 2012 photo provided by Aurora Photos for Mammut, Peter Ortner and David Lama walk on the Trango Summit in northern Pakistan's Karakoram mountain range while a remote-contro

 

              In this July 2012 photo provided by Aurora Photos for Mammut, Peter Ortner and David Lama walk on the Trango Summit in northern Pakistan
In this July 2012 photo provided by Aurora Photos for Mammut, Peter Ortner and David Lama walk on the Trango Summit in northern Pakistan's Karakoram mountain range while a remote-controlled helicopter flies over them. Drones have long been the domain of the U.S. military, which uses them extensively in Pakistan’s tribal areas near the Afghanistan border to spy on and target threats to the United States. Recently, however, civilians have increasingly turned to drones to shoot ground-breaking footage or angles of adventure sports. (AP Photo/Aurora Photos for Mammut, Corey Rich)