How do you like those odds?

There are 440 commercial nuclear reactors in the world. There have been major nuclear accidents at 5 of them: Three (so far) at Fukushima, one each at Chernobyl and Three mile Island. There have major accidents at 1 in 90 commercial nuclear reactors.

For something as dangerous as a nuclear accident, are those odds acceptable?

What odds would you feel comfortable with, 1 in 1000, one in a million? Do you suppose big business admitted the odds are 1 in 90 that a major contamination would occur?

My hopes and prayers go out to those touched by this disaster.