Guardian: Seven years ago, I collected all the available cost estimates for nuclear power. The US Nuclear Energy Institute suggested a penny a kilowatt hour. The Royal Academy of Engineering confidently predicted 2.3p. The British government announced that in 2020 the price would be between 3 and 4p. The New Economics Foundation guessed that it could be anywhere between 3.4 and 8.3p; 8.3 pence was so far beyond what anyone else forecast that I treated it as scarcely credible. It falls a penny short of the...