UK proposes strict stem cell rules

UK scientists are objecting to a new law that would require researchers wishing to work on embryonic stem cells to obtain consent from the cells' donors. Yesterday (January 21), 29 researchers, including three Nobel laureates, published a linkurl:letter;http://www.timesonline.co.uk/tol/comment/letters/article3221046.ece in the Times arguing that while such consent should be required in the future, obtaining it retroactively for cell lines and disease-specific tissue banks already inexistence w