News on drones and security have largely highlighted the major risks drones pose to various industries and to populations at large. This is not without good reason; suicide drones have been used in attempted assassinations, cartels use them to smuggle drugs across borders, ISIS has used them to drop grenades, and they pose significant risks to air traffic, if not only expensive disruptions. Obstacles to anti-drone technology are generated by difficulties surrounding detection, prompt response, and precise takedowns. A leading problem with drone detection is their size, often no larger than the birds that populate most cities. Anti-drone weapons are mostly divided into two classes, the more traditional type working to shoot drones out the sky with bullets and the other working to jam drone signals, causing them to fly without direction or fall from the sky. The obstacles facing these technologies include the difficulty in spraying bullets across urban environments where drones can be especially lethal, and the varying complexity of radio control technology across drones. Although it has taken significant amounts of money, time, and effort, the anti-drone technologies are slowly overcoming many of these obstacles in new, innovative ways.
Source: Thankfully, the technology to combat rogue drones is getting better – Drone defenders: The Economist
