Nanomedicine: The Risks & The Potential

Scientists are developing the ability to manipulate unbelievably small matter--thousand of times smaller than a human hair. All kinds of magical things can happen at this technology could revolutionize manufacturing, and could offer targeted therapies for cancer and other diseases that do not carry the side effects of chemotherapy. But this medical frontier is so new that the ethical and environmental concerns have many people alarmed. Host: Miles O’Brien, science correspondent for Newshour. Pa