Genetics was the 'next big thing' 20 years ago GATPOO, Nanotech is currently being used but not in the sense of tiny robots that zoom around us, its being used to treat tumours by injecting them with small granules of iron(?). The healthy cells let the iron pass, whereas the cancerous ones beacuse of their smaller nature stop the granules in their tracks, once exposed to radiation the cancerous cell are targetted more effectivley and thus treatment is more precise and less intensive as oppsed to tradional chemotherapy