This is one of the weirdest things I've seen in not just NASCAR, but in all sports: Sunday night's Coca Cola 600 was briefly delayed when a rope holding one of Fox's cameras snapped, injuring ten fans and damaging three cars.
What ended up happening was that the camera system, which was used during the Daytona 500 and last week's All-Star race, has three ropes controlling it and that the drive rope (which is what moves the camera) snapped for an unknown reason, causing it to fall to the track and cause all of the damage.
Thankfully, none of the injuries suffered by the fans were severe, and only three people were taken to the hospital with minor, non-life threatning injuries. This could have been a huge disaster for Fox and NASCAR, and it's a miracle that things didn't end up worse. Two years ago, we named the SkyCam one of the five worst sports TV innovations, and ESPN's SkyCam nearly killed some Iowa players during the 2011 Insight Bowl. While technology is indeed very awesome, it's still pretty dangerous and there are numeous really bad things that can happen with just one error.