To keep drones out of high-risk areas, companies try hijacking them and shooting them down
Those concerns are heightened by high-profile incidents such as the near collision in March of a drone and a Lufthansa jet approaching Los Angeles International Airport. In 2013 a drone crash landed in front of German Chancellor Angela Merkel at a campaign event, and a quadcopter crashed on the White House lawn in 2015.
Defense giants Boeing Co. and Lockheed Martin Corp., as well as a handful of start-ups, have jumped into the fray, developing technology ranging from detection systems to more disruptive solutions such as software that forces unauthorized drones to go home or land safely and laser cannons that shoot unwanted drones out of the sky.