CNN’s Dr. Gupta: “It’s remarkable work”

CNN chief medical correspondent Dr. Sanjay Gupta describes some of the possible health challenges faced by the workers inside the Fukushima Daiichi nuclear power station.  Dr. Gupta adds context to the concerns of short- and long-term radiation exposure and contamination, as well as the relative risks for people living in the vicinity of the plant, those living in Tokyo, and further away.