[Question_Assumptions]

While I agree that there is a profound risk of damaging the embryo by removing a single cell at such an early stage, I think the more troubling question is whether that removed cell has the capacity to develop into a baby and, if so, they are just creating a twin and killing the twin.

[tallhappy]

Interesting question and addressable at many levels.

I agree with the technical comments made by Government shrinker relating to this.

[dpwiener]

I think the more troubling question is whether that removed cell has the capacity to develop into a baby and, if so, they are just creating a twin and killing the twin.

No one has yet been able to take a single removed cell from an embryo and coax it into developing into a baby. But even if they eventually do, so what? What happens when medical science reaches the point where it is capable of taking any human cell and turning into an embryo which can develop into a baby? Does that mean that every cell in our bodies is a potential new human being and that the destruction of even one cell therefore becomes murder?