Nodar Kumaritashvili flew off the luge track and collided into a post. The 21-year-old from Georgia died. Olympic organizers said it was his inexperience that killed him. It wasn’t. Working night and day for days, I was able to show how the track was built to fit on an impossibly narrow piece of land, making the track dangerous. Worse, the safety compromise had nothing to do with sports. It was about business.