Editing Embryonic stem cell (section)

===Ethical debate===
{{Main|Stem cell controversy}}
Due to the nature of embryonic stem cell research, there are a lot of controversial opinions on the topic. Since harvesting embryonic stem cells usually necessitates destroying the embryo from which those cells are obtained, the moral status of the embryo comes into question. Some people claim that the embryo is too young to achieve personhood or that the embryo, if donated from an IVF clinic (where labs typically acquire embryos), would otherwise go to medical waste anyway. Opponents of ESC research claim that an embryo is a human life, therefore destroying it is murder and the embryo must be protected under the same ethical view as a more developed human being.<ref>{{cite journal |last1=King |first1=Nancy |last2=Perrin |first2=Jacob |title=Ethical issues in stem cell research and therapy |journal=Stem Cell Research & Therapy |volume=5 |issue=4 |pages=85 |date=July 7, 2014 |doi=10.1186/scrt474 |pmid=25157428 |pmc=4097842 |doi-access=free }}</ref>