Please elaborate.
I really don’t need to. There are event worse events than Japan on the horizon. And that one is far from over. There are so many ways that things can go wrong with nuclear power.
But ask yourself this. How many of those power plants are in range of Yellowstone? If such a volcano goes off then those plants will detonate in short order, Spewing radioactive waste far and wide, and there is nothing that man will be able to do about it. The environmental damage from the volcano will be the least of our problems. Even assuming no explosive damage to those plants then think about the logistics of keeping the cooling systems operating in such and environment. Ash falling 100 feet deep(soon to be radioactive ash), zero visibility, Planes unable to fly, Trucks unable to travel, ect...
The insanity of existing nuclear power plants is self evident. The probability of unrecoverable disaster is mathematically certain. Everyone just needs to think a little.