What do we do with the research that goes wrong? A human clone that isn't normal or sane?
First off, we should establish that 'cloning' is merely a method for making a genetic copy of a person. It uses scientific methods to bypass the traditional mother-father mixing of genes to produce a creature with the same genotype as the parent.
This doesn't change the rate of growth; so, if you cloned yourself, Baldimo, you would have a kid with the same DNA as you, but it would still take 18 years to grow up.
You sound as if you are mixing fears of genetic manipulation, nano manipulation, and biological or genetic therapy in with cloning, and they are seperate things.
Besides, we have normal and sane people now? The situation doesn't seem too different than nature to me.