Imagine you were behind the scenes of the Fukushima crisis. You have to begin planning for the evacuation of the outskirts of Tokyo because you have been told

Imagine you were behind the scenes of the Fukushima crisis. You have to begin planning for the evacuation of the outskirts of Tokyo because you have been told that the situation on the plant site is uncontrolled, there have been multiple meltdowns and explosions and there's the possibility for things to get worse. At that point the game has changed around the calculation of risk. A few days later the situation is declared under control. How do you feel? I can think of no appropriate feeling aside from "lucky". The point is that the error bars around nuclear power operation are so large that perceptions of risk are not the same as for conventional power. Its interesting to think about the role of luck for Chernobyl. A grossly unsafe design combined with a bunch of incompetents performing live tests with multiple safety systems disabled, not much luck there. Was there luck in consequences of what followed? Possibly.