This movie, NOVA, introduces the decoding of human genes and the impact of this technology.

Even a 5-year-old child, who never took any biology class, would probably be able to tell that DNA includes all the information that makes a human. Meanwhile we know very little about the information encoded. After decades of research, the scientists can now indentify the protean types of the numerous pairs on the DNA chain. Yet, we still have limited understanding on how these protean relate to our biological features. Luckily we are now already able to utilize the limited knowledge to improve human welfare, especially in medicine. Reearchers in the area believe that human will be able to completely manipulate these genetic information, i.e. modify what makes up us.

Thrilled by the wonder of science, we still need to consider the ethical side of this development. Should each indiviual have access to his/her own DNA info, and how can we protect the privacy of such info? If we can just genetically modify our descedents, what are the moral issues that come with it?

I personally think that we should consider this problems without stopping our studies becuase the benefits are irresistable. Would not it be great to not having illness or birth-defects anymore?