In a recent political move, Republican Presidential candidate John McCain voiced his opposition to embryonic stem cell research (ESC). Yet, even as the controversy rages on, the real reasons for opposition to embryonic stem cell research are increasingly obscured.
Stem cells are, in simplest terms, the
Opponents of embryonic stem cell research often highlight the similarities between babies, fetuses, and embryos, and dismiss the obvious difference between them. Their arguments almost invariably rely on the difficulty of marking precise dividing lines between them, and offer this difficulty as a reason to