True, it has. But, the failure rate is not zero. And more plants mean they will happen more often. I’m just pointing out that it’s rational to worry about a

True, it has. But, the failure rate is not zero. And more plants mean they will happen more often. I’m just pointing out that it’s rational to worry about a small probability high consequence disaster. Nuclear fission is a reaction with a positive feedback loop, making it naturally unstable, and requires some mechanism to create a negative feedback of greater magnitude to make it stable. And that requires some kind of active machinery to function properly. If that machinery fails, then the feedback loop becomes positive again. Machines can always fail, so I doubt that fission can ever be made completely safe.