Society in general has a gross disrepect for unborn children. We have abortions, in vitro fertilization and now embryonic stem cell research. But this i think this goes beyond religion and ethics. The thing i've always found funny about Embryonic stem cell research is how it's supporters talk as if cures and solutions to dieseases is just around the corner and if only the US stopped BS'in and started funding research. This is NOT the case. Most scientists agree that embryonic stem cells will not have any common medical use for at least 20 years IF at all.
The biggest problem right now with Embryonic stem cells is their rapid, uncontrollable growth rate. Some scientists have even gone as far as saying that the success of the medicinal embryonic stem cells totally relies on that of the overall success we've had in Cancer research, which has been lax since it started in the 70's.
Until then, i think scientist should focus on stem cells that DO work. Such as The adult stem cells found in bone marrow.
Thats just my two cents.