I ask this question seriously. Are FCVs safe? With the introduction of more and more fuel cell vehicles into the market, even in small numbers, I ask what happens to the 10,000 psi tank in the event of a fire? It's all well saying it should hold until the fire is extinguished, but some cars can burn for hours such as stolen vehicles dumped miles from anywhere or even a lit vehicle in a riot. What happens to that 10,000 psi tank? It'll be straining away already holding a full supply of hydrogen let alone when the car is white hot after some miscreant has set it on fire. So how does the hydrogen tank stop itself from blowing up? Does it vent? What are the dangers? Will it have to be left completely alone for two or three days to cool down? Will it just split and go bang? If it does go pop will it just affect the immediate area like a petrol car or will it take out all the windows for half a mile? If your new Mirai or Hyundai FCV had been parked in the middle of this; Would the image be the same or would there be a large crater with all the windows of that building blow out? Or is this one for MythBusters?