I only partly agree that mining disasters should be linked to electric generating failures. And if we want to include environmental consequences (a la Chernobyl), then shouldn't the effects of the hydroelectric dams in the Pacific Northwest on the native salmon populations be included -- the consequences from this have had an impact on many aspects of the region.

And let's not, in this regard, forget about the effects of acid rain.

Frankly, I don't see ANY electrical generating scheme which has no potential to harm the environment.