The right hon. Gentleman's part in this campaign is well known. He pursues it with his customary vigour in the House and outside it. The belief that there is no link is not the Government's finding but the independent finding of the National Radiological Protection Board. Its report is endorsed by Sir Richard Doll, an eminent professor. As for the American experience, the circumstances are not comparable and, in any case, they are a matter for the American authorities.