New artificial stem cells have their own ethical issues

Induced pluripotent stem (iPS) cells, which are created by reprogramming adult tissue into a versatile, embryo-like state, have been described as an ethical breakthrough. Yet, as they do not have to be harvested from an embryo, destroying it in the process, their use is acceptable to many religious groups that oppose embryonic stem-cell research. These reprogrammed cells, however, address only in part the moral objections of those who think that embryos have the same right to life as born people. They also raise their own ethical challenges. The cells may not require the destruction of embryos but they are very much products of embryo research. Times Online