Could we produce a nanobot that could push two atoms together till they fuse?? I imagine a simple nanobot with two arms which would collect the two atoms and simply push them together. Is it possible for the molecular arms to have the strength needed to do the job? or would the molecular bonds in the arms just break apart with the forces involved? You could make a nice nanobomb. Get a large bucket full of these bots to do it at the same time and bang.