What we can learn from the past is that advanced technologies become much safer over time. I don't have the numbers here, but air travel is maybe 1000 times safer than when it started.
So I'd be very confident assuming the accident rate in the future to be vastly less than during the first few decades of nuclear energy.
Given this potential threat anything that will be discovered to increase its probability will increase operation cost of reactors in the future. This is just not the case with planes. There minimizing the risk beyond a certain threshold is sufficient especially since it is known that an error in estimation of that threshold is bounded.
Can it really? That would be an order of magnitude worse than the Hiroshima bomb.
That's true of a lot more than nuclear fission...
It is just the article talks about operation costs of nuclear completely ignoring future costs increases.