Bush's logic is consistent. But really retarded.
I think it would be useful to highlight just why Bush vetoed the bill. He thinks that the destruction of an embryo is tantamount to the destruction of a human being. By the 'thou shalt not kill' principle, he claims that this is just the same as murdering a person. Or having an abortion.
This is, as I said, consistent. But it rests on a certain conservative habit of creating false dilemmas by being anthropocentric (and intensely myopic). Funnily enough, the religion with which much of the 'right' align with is supposed to eliminate the egocentrism that these people inadvertantly exhibit in raising humanity onto a pedestal, and it is also this that allows them to accuse the scientists at the forefront of this research of excessive hubris by 'playing God'.
To address this, I'd question the notion of intrinsic value of human life over any other life, and to me, a deconstruction of the sentiment easily follows.
On that note, anybody familiar with the news of using extracting cells in a way that doesn't require the destruction of the embryo? Or would this go in a separate thread?