The United States has derailed a proposal to toughen nuclear safety standards by amending a global atomic treaty, diplomats said, with opponents of the move arguing it would get mired in lengthy parliamentary ratification.
Months of wrangling about the future of the 77-nation Convention on Nuclear Safety (CNS) culminated at a Vienna meeting diplomats feared could expose divisions over safety standards four years after the Fukushima disaster started.
Switzerland had put forward a proposal to amend the CNS, arguing stricter standards could help avoid a repeat of Fukushima, where an earthquake and tsunami sparked triple nuclear meltdowns, forced more than 160,000 people to flee nearby towns and contaminated water, food and air.
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