My Lords, I declare an interest as a patron of the South Asian Health Foundation. The south Asian population has a very high incidence of diabetes, particularly type 1, which is probably related to a strong gene marker. Some 50% of people with type 1 diabetes have some kind of gene marker. Those who have a strong gene marker in a particular region, the HLA region of chromosome 6, have a very high incidence. My point is that, if we screen people, particularly those with a family history of diabetes, for genetic markers, we will identify them much earlier, even in childhood. The prevention that is therefore required—changing their environment and diet—becomes more effective. This ought to be one of the preventive strategies for diabetes in high-risk populations.