Few advances in modern science have generated as much excitement and public debate as the discovery of human embryonic stem cells (hESCs). The debate over the use of embryonic stem cells in research has polarized the global community between those who argue that such research promises medical breakthroughs for many currently incurable diseases and disorders, while opponents condemn such research as resulting in the destruction of potential human life and is seen as humanity “playing at being God”. There are no clear answers to the moral debate regarding this particular area of ​​stem cell research. At the heart of the debate is the ethical question of which is the most valuable; the life of a human being suffering from a fatal disease or life-threatening injury, or the life of a potential human being? These are the difficult questions facing both scientists engaged in research, legislators who set the laws that govern such research, and the public as a whole. While many agree that embryonic stem cell research has the potential to develop treatments for a number of diseases affecting humanity, if such research cannot be conducted without the cost of destroying a life, it should therefore not be pursued. Experimentation with embryonic stem cells has become an important step forward in current medical research. Why is this? According to Medical News Today, these embryonic stem cells are considered the most useful for research due to their pluripotent nature (MNT, July 2013). This means, according to the National Institutes of Health Stem Cell Information Center, that embryonic stem cells are considered unspecialized cells, or stem cells. Being unspecialized or “undifferentiated” in science...... half of the document...... S. Foundations of the stem cell debate: scientific, religious, ethical and political issues. Berkeley: University of California Press, 2008. Print.Mukhopadhyay, C.S., Jayanti Tokas, and P.D. Mathur. “Prospects and ethical concerns of embryonic stem cell research: a review.” Veterinary World 4.6 (2011): 281-6. Print.Ruiz-Canela, Miguel. “Embryonic stem cell research: the relevance of ethics in the progress of science”. Med Sci Monit, 2002; 8(5) (2002): RS21-26. Print.“Stem cell information center”. National Institutes of Health. 2009. Web.Steinbock, Bonnie. “The science, politics, and ethics of stem cell research.” Reproductive Biomedicine Online, vol.14. Supplement 1. (2007): 130-136. Print.Sullivan, Dr. Dennis M., Costerisan, Aaron. “Complicity and Stem Cell Research: Countering the Utilitarian Argument.” Ethics and Medicine, 24:3 (2008): 151-158. Press.