Regulatory decision-making in the area of nuclear safety is a special case of systems analysis and decision-making related to large sociteal systems. In dealing with such systems, the pioneers of modern systems analysis were well aware of the relevance of ethical and political aspects as analysed and discussed by teh great philosophers from Plato, Aristoteles, Leibniz, Kant and onwards [1]. Also, in teh past decades, studies on risk perception and decision-making has become a mature field in social and political sciences. Individual and societal risk percetions and public and political acceptance issues related to nuclear power have been studied in many countries, including the Scandinavian [2],[3],[4]. The purpose of this paper is not to discuss the scientific and philosohical aspects of risk perception and decision-making, but to present some insights and experience gained from Swedish regulatory risk assessment and decision-making on nuclear safety issues in the past decades.
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