Not to mention that Chernobyl and Fukushima are far from the worst case scenario. An active power plant or a nuclear waste storage facility being destroyed (e.

Not to mention that Chernobyl and Fukushima are far from the worst case scenario. An active power plant or a nuclear waste storage facility being destroyed (e.g. as an act of war) and dispersing a large amount of fuel/waste in the environment would be orders of magnitude worse.