It’s the Attack of the Drones! Ad agencies, filmmakers, university researchers, sports teams, humanitarian organizations, public-safety departments, farmers and some of the world’s largest technology companies all have something in common: They are using or actively exploring ways to use unmanned aerial vehicles (UAVs), also known as drones. But with privacy concerns and safety issues, both highlighted by a hobbyist recently piloting a drone over the White House fence and crashing it on the President’s lawn, drones are also set to become a multifaceted new battlefront in the World of Permeable Borders.