Ron Bailey in Reason, The Genetics of Ensoulment:
Advances in stem cell research may be provoking a kind of "God of the Gaps" retreat on the moral status of embryos. People who subscribe to God of the Gaps thinking believe that the hand of God can be seen in those things which science cannot explain. In this case, the closing gaps in the details of molecular biology are forcing pro-lifers into an uncomfortable corner where they have to decide whether or not a cell can be imbued with a soul by turning a single gene on or off.
