If you’ve been watching the action on the slopes at the Olympics, you may have spotted a drone flying near the snowboarding athletes. Hooked up with live video feed, they are transmitting video images to live coverage feeds. Why use a drone to film Olympic events? “We can go really, really close. And we are really quiet, so nobody is distracted,” said pilot and cameraman Remo Masima, who has used drones to film skiers in Switzerland for commercials.