Nuclear power, bastard child of the Cold War is just fine until it's not, and when its not the problem can quickly escalate beyond the human ability to deal with it — Fukushima tells that tale very convincingly. And then there is the issue of the nuclear waste which no one knows what to do with and which, in theory, must be maintained in a stable state for, well no one is really sure, but potentially 200,000 years. Since human recorded history only dates back to the Fourth Millennium BCE, roughly 6,000 years, you can see the problem.
Top Nuclear Watchdog Forced Out by Industry