Embryonic stem cells mutate

It's not surprising that tissues kept at an immature state for an indefinite time would have genetic mutations. I would think it would be even more expected that cells whose natures it is to change and develop would be susceptible to mutations.The Boston Globe and others reported on Sunday, September 4, that minute nuclear changes build up as the cultures of embryonic stem cells repeatedly divide in the lab.

However, instead of creating an understanding that the focus of research should be non-destructive, non-embryonic stem cells, the press reports seem to call for the creation of even more embryonic stem cells lines in order to find out what went wrong.

Since these stem cells carry the ethical problem that someone has to die in order for them to be harvested, and since they will have to be transplanted into any patient who is treated, I believe this entire line of research should be dropped.