This shows that the security of supply situation in OECD countries has unequivocally improved since the early 1970s. However, individual parameters such as import dependence and price volatility are consistently highlighted as issues of public concern, in particular in the regularly published Eurobarometer opinion polls. This suggests that nuclear is viewed more favourably if it is not pushed as an autonomous issue for its own sake but integrated into the context of broader policy objectives such as ensuring the security of energy supply or the reduction of greenhouse gas emissions.