Two airplanes have just collided on the runway at Tenerife Airport. While no one on the Amsterdam-bound KLM plane survives the resulting fireball, 71 Pan-Am passengers and crew make it off their plane. But could it have been more? Why did so many Pan-Am passengers die, even though they weren’t injured by the initial collision and their plane was still on the ground? For a full list of sources see the show notes at timharford.com.See omnystudio.com/listener for privacy information.