the reuter's article is an excellent example of why i greet most mass media reports of scientific topics with great disdain. There are huge differences between things not operating in a preferred or expected manner (current state of affairs for reactors in Japan), making a difficult to repair or unrepairable but non-catastrophic mess (~3MI), and a catastrophic, global disaster (chernobyl).
I have yet to hear a single 'news' person discuss the source(s) of released radiation from the japanese reactors. If you hear a news person mention the source and form of radiation, then that would be a person to pay attention to. If they start talking about curies, roentgens, or rem dosages, and at what distance from the reactor then you can be impressed.