There is an enormous amount of research ongoing in this area. In preparation for this debate I took the trouble to ring two friends of mine who have both been unfortunate enough to develop breast cancer. One of them was picked up through the screening process, while the other detected a lump herself. Both said that, regardless of the method of diagnosis, the most important element was the service provided to them. Each of them spoke about how excellent the service was and the great care they received, particularly the lady who was picked up through screening who had a team of seven medical experts available to her and, at any time, two or three of them might be dealing with her problem. She did not particularly wish to know how advanced her case was and there is an argument both for and against having this knowledge. Ultimately she had to be told but she is delighted with all the care she is receiving.