How do you think/hope nano bots will be used. For the uninitiated, they are microscopic machines that (in the future) will be able to enter the human body without popping blood vessels or creating annoyingly lethal airpockets. Unintentionaly, that is. If anyone has relevent data on said technology please share. Other than "x impossible because of y, moron. You post on the internet so you are expected to have taken every college course known to man and memorized Wikipedia" as this is pure conjecture.