It seems like we both got the same idea simultaneously Fable - that the board needed some serious discussion threads
IMO genetic engineering is a wonderful area with great promise, and also a really frightening prospect. Cloning of animals like cattle and mice are done almost routinely now, by several labs. Cloning of human beings is already possible, but international agreements has halted the development (for now) by limiting the time for how long a fertilized egg cell is allowed to divide. It is certain that both cloning of animals (us included) and plants, will continue to rise more and more ethical questions. We constantly increase our control of the fundamental life processes for both ourselves and the environment we live in.
I think some fears of mankind altering and disturbing the balance in complex eco-systems, are valid. There is still so much we don't understand fully, and changes in one end might result in unexpected and unwished effects. But there is also much irrational fear. Genetic engineering in food production has been around since the dawn of agriculture, it's just the methods that have changed.
The cloning of animals for spare body parts can be viewed in the same context as keeping animals just to eat them, or to carry out medical experiments and beauty-product testing on them. How much should mankind be allowed to exploit other beings for his own purposes? Is there a limit? I have a lot of opinions, as always, but to me, there is no difference between cloning animals for spare body parts and the use of transgenic animals (like knock-out mice, mice with a specific gene removed) in medical research. Or the mass production of meat that we see in industrial farming.
Genetic enginering in humans is a heavily loaded issue, and IMO media is making things worse by chosing to focus on certain aspects while not discussing others, sometimes more fundamental questions. I personally think that the fear of "custum-made" children is exaggregated by many. Genes coding for eye colour are easy to located and probably also to alter, but on the other hand, eye colour isn't a terribly important feature in an individual (hopefully). Genes coding for personality, temperament, intelligence, learning ability etc, are totally unknown, and most geneticists are convinced that there are no single genes that determine these things, but a combination of many different genetic features that interacts with the individuals environment. "Post-genetics" are far more important in determining that kind of individual features.
The greatest promise that genetic enginering holds for humans, is perhaps the hope to cure severe diseased with genotherapy. With today's known techinques it's terribly difficult to alter the DNA of an adult individual (I had a recent discussion about why with my brother in law recently, he is working with production of DNA sequences), but in babies, it's much easier. Wouldn't we all like to have healthy children? Wouldn't we all like a future where all the hereditary diseases are gone, and we can even remove genes that makes us vulnerable to for instance cancer, schizophrenia, Alzheimer's, etc? I'm sure most of us would, but it's still a utopia, and if it is to be reality, we will face the potentially dangerous side of the coin as well.
One such dangerous effect IMO, is an increase of class society. Genetic enginering is expensive, and will continue to be so for a long time. Let me take an example: a by-pass surgery of the heart is viewed as a simple routine procedure in all of the Western world today. The technique was invented in the early 1970's I think, and in 30 years this life saving and/or life prolonging technique has become an everyday medical service.
For a certain part of the worlds population.
With genetic enginering, we might be healthier and live longer. This will increase our power, and it will also make each and every individual consume more during his/her lifetime. When do you think by-pass surgery will become available to people with heart diseases in Somalia? A century has passed since penicilline was invented - still, lots of people die from common diseases easily treated with antibiotics, while we in the industrial world overconsume antibiotics to the extent that we create antibiotic-resistent lines of bacteria. I foresee a similar problem with genetic enginering - it will only become avaible to certain populations, and it will probably increase the power, wealth and resource consumption in this groups.
Anyway, research cannot be stopped by as long as finacial interests exist. Personally, I don't think it should be stopped either, but I think that global, all inclusive (not only partly, as today) regulation should be introduced. I think I posted previously that two researchers, an American and an Italian, stated last year that they will move their labs to some state that has not yet signed the international agreement on banning human cloning, an carry out their experments as a means of curing infertility. They stated they would start this project this year. IMO, this demonstrates the need for a truly global regulation.
Is mankind ready for the knowledge we have? No, I don't think so. I hope the utopia/dystopia I described above is still far ahead, because we need both deeper understanding of the processes, and, most of all, we need to adjust our minds and our society to these possibilitites.
*sigh* this discussion taps questions I'm asking myself about my own research about neurotransmitters in the human brain. It would be a dream to be able to cure or at least decrease the symptoms, of severe neuropsychiatric conditions that cause much suffereing. But it would be a nightmare to imagine a future where people can take a pill to increase their learning ability or change their personality. *double sigh*.