The American President George W. Bush has used his presidential veto for the first time to block further federal taxpayers money from being used for embryonic stem-cell research.
In doing so George Bush has adopted what he sees as the moral high ground saying such research 'crosses a moral line between science and ethics that can only do damage to both'.
Speaking in Washington President Bush declared that the proposed law would have supported ' the taking of innocent human life in the hope of finding medical benefits for others and it crosses a real moral boundary that our society needs to respect.'
In an attempt to emphasise his point he appeared yesterday with 18 families who had 'adopted' frozen embryos discarded by other couples which were subsequently used to impregnate women
But in doing so he may himself have crossed some sort of moral boundary, as such an emotive viewpoint, may to many, smack of emotional blackmail with scant scientific basis.
The embryos in question are derived from fertility clinics, where eggs and sperm are joined together in lab dishes and many more are created than can ever be implanted in womens' wombs; the thousands of embryos not used are discarded.
Such stem cells are taken from a ball of cells known as a blastocyst, which develops five to seven days after conception and cannot become a fetus.
Had the bill succeeded the expanded government funding would have greatly enhanced stem cell research into many chronic diseases such as Alzheimer's, diabetes and Parkinson's.
Opponents say the current U.S. restrictions, where government money is barred from supporting work on new lines derived from human embryos, hampers overall research and is hindering world efforts to develop therapies for a range of diseases and illnesses.