[marshallp]

I'll have to disagree with you on that. Genetics is the wrong approach to dealing with all this and was a wild goose chase. Regenerative medicine is the correct approach, the body has all the mechanisms already to regrow itself, after all, it did grow in the first. Regrowing the body and keeping it from being a cancerous growth is the actual challenge. Noninvasive surgery like radiosurgery, focused ultrasound, and photoacoustic surgery is the correct approach along with floating growth factors. This is not really biological engineering but electromechanical engineering and well within grasp. A proper effort would get this done within a year.