Health physicists ought to be a really good resource for journalists and others making efforts to learn more and report on problems with the nuclear reactors in Japan
Such environmental problems are highly multidisciplinary, and no single area of expertise is going to necessarily have the right answers (and, just as important, the right questions). I’m seeing a lot of interviews of various nuclear engineering professors, nuclear plant operators, and others. People with these backgrounds can have a lot to add, but they sometimes only can provide part of a picture (and their own understanding of matters is of course affected by their background and experience).
When it comes to effects of radiation and how to deal with radioisotopes on many levels, health physicists can help with obtaining cogent, accurate descriptions of current events, and future possibilities.