Blue Genes

Last night I watched a very interesting documentary on SBS which was about human genes. It was fascinating to realise that the genes one carry is the reason for one's IQ level, rather than the school one may attend or the extra work one may put in. Scientists have found out through genetic tests that certain diseases, IQ level, emotional equilibrium etc are all dependant on the DNA being passed to you from your family, just as much as your physical features . So yes you are born with it all. The tendency to develop a disease like Cystic Fibrosis, Manic Depression, Down Syndrome or even Breast Cancer is initially designed in the chromosomes of a developing fetus. And that's what this post is going to be about...those mutated genes that doctors these days can track down even before a child is born.
The program showed how doctors in the US are screening embryos for certain diseases so that parents expecting the child are informed of what the child may develop. Thereafter it is upto the parents to decide if they want to go ahead with the pregnancy or terminate it. These doctors and the parents seem to classify a potential genetic disease-bearing fetus as a drawback to the society if allowed to the see the light of this world. On the other hand there was a woman who had a son with Down Syndrome and was quite content with her life. Having a family history of Down Syndrome, she stated that when she got pregnant with this child, she was informed about the embryo-screening for genetic diseases. She refused to take the test as how she thought about it was that all she wanted was a child and it doesn't matter who he/she would be - at that point I had tears in my eyes because I think she is a selfless mother with a beautiful heart. There was another lady who was a manic depressive and was told by her doctor not to get pregnant as her child would some day be a problem to himself/herself and the society. She was very upset about it and in tears not knwoing what to do as she badly wanted a child. She is a doctor herself and has written many books about depression, and she also found out that people who have depression-developing genes are also uniquely creative and intelligent than the rest! So yes they can also be assets to this world if given a chance to be born!
My question to you is should a DNA screening for potential genetic diseases be done on a developing fetus that allows the parents to decide whether to have the child or abort it? Or by doing this are we tampering with the fetus' right to live? Personally I am against the screening and I firmly believe it's a violation of the fetus' rights even though it's not born yet. We must not forget that unborn babies breathe too, just that they don't get their say yet. Should the mother-to-be have that right then, but then again isn't a mother supposed to give birth to a child and lookafter it irrespective of what abnormality the baby might have? In fear of not being able to give light, should the sun be compelled to set even before it's risen?