Will the Minister confirm that, notwithstanding what the hon. Lady has said about the cluster of leukaemia in the vicinity of Thurso, all the scientific studies that have been done fail to prove any connection with work being done at Dounreay? Whatever the explanation for that—clusters of leukaemia occur in many places far removed from nuclear sites—no scientific connection has been demonstrated and scaremongering about Dounreay is deeply damaging and much to be deplored.