Drone catchers and face-detecting planes will guard the Olympics

South Korean authorities are adopting some pretty high-tech security measures for the upcoming Winter Olympics, including the deployment of drone-catching-drones and a tactical plane with facial recognition. The drones they're using to patrol the event won't chase away rogue drones that get too close to the venues: they'll cast nets to catch any UAV that shows up on the the security team's radar. More than being worried about photographers taking unauthorized photos of the games, the Pyeongchang Olympics anti-Terrorism and Safety team are apparently concerned about the possibility of terrorists using drones to drop or plant bombs. In fact, team members have also been training to shoot drones out of the sky, in case their own drones aren't enough. North Korea's participation in the games make it less likely for the country to attack, but it's clear that authorities want to be prepared -- after all, terrorists typically attack huge crowds.