The principle of proportionality applies, of course, to the use of this research. The methods must be reasonable and acceptable and there must not be a more acceptable alternative. We may find that progress on adult stem cells will result in a future situation where we will not need to use embryonic stem cells. However, at the moment, we need them because they are truly potent and we have an ethical duty to people with degenerative diseases such as Parkinson's disease, multiple sclerosis and the neuro-muscular diseases of children. I was interested to note a statement by the secretary of the Irish Bishops' commission on bio-ethics, Fr. Kevin Doran, who has been quoted already. Addressing the issue of pharmaceutical companies in this country, he said: "How do we feel about the development of treatments based on embryonic stem cell research in other countries, which treatments will be produced here?" We have placed a great deal of emphasis on the fact that we are promoting biotechnology in Ireland. I ask Senators to address that also.