The manipulation of Nanobots.

The question is, the use of Nanobots to improve our bodies and how you would use this ability.

Foremost this is pushing the capabilities of science. I believe that making changes on that small of a level runs the risk of major malfunctions. We have all experienced allergic reactions to a medicine we have not taken before. Why would we believe we could not have the same reaction to a nanobot on the lose within our body. You talk about mind control. Would you want to give anyone or anything such control over yourself? What would happen to your soul or your spirit? Even God gives us free will. If Nanobots can be safely used to cure disease with our body I would want to have a clear explanation as to how it works. It would be great if all disease could be cured in such a fashion. I feel it is still a long way off before Science Fiction become Science Fact.