> it will still kill less people than your fossil fuel plant that does not blow up.

given how concentrated energy output from nuclear power plants is there are significant other considerations like terrorism, or sabotage, in particular in regions like Africa and Asia which is really the only place where massive expansion of nuclear energy still makes potential sense.

There's also the economic costs in case of catastrophy. Depending on the source Fukushima has costed Japan several tens but more likely several hundreds of billions, devalued private property and land or has made it unusable, and so forth.