求翻译：12. That's an important lesson for Fukushima too, where the plant operator and government have already begun discussing compensation schemes. Preventing a culture of dependency from taking hold there, however, will be easier than reversing the one that's been in place for a quarter of a century in Ukraine. On April 17, several hundred of the some 500,000 "liquidators" who were exposed to high radiation doses during efforts to clean up the site in the weeks following the accident gathered in central Kiev to protest proposed cuts to benefits. These half-million workers were part of some agonizing moral math for Soviet officials: their extremely high doses of radiation would be tolerated so as to lower the statistical risk of a shortened life for millions of people outside the plant.是什么意思？

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