This Brilliant Plan Could Stop Drone Terrorism. Too Bad It's Illegal

Imagine you're part of a great swelling crowd, one of 60,000 people who fill up the cauldron of noise and chaos that is a sold-out football stadium. For you and everyone around you, the game is an open-air gathering place, a chance to steam and scream and worry about nothing except the other team's menacing D. To the security officials responsible for your safety, it is a constant source of worst-case-scenario planning. They install metal detectors; they enlist a kennel's worth of bomb-sniffing dogs; they plant concrete pillars around the perimeter to keep out cars; they train personnel in the dark art of bag searching; they even obtain a temporary flight restriction from the FAA to keep all aircraft above 3,000 feet for a radius of 3 miles. They spend millions of dollars and thousands of hours to keep you safe, yet they know that none of it can stop a 3-pound off-the-shelf drone from flying in and dropping something on the crowd. Whatever it is, you'll never see it coming, and because there is currently no legal way to bring down a drone with any accuracy or reliability, there's nothing anyone can do but wait for it. In the summer of 2015, Ross Lamm and Dave Romero watched just such a scenario unfold from within a skybox at a large university stadium. The head of security for the college, fearful of the damage drones could do, had decided to run a simulation of a drone attack inside his 60,000- capacity football stadium.