[ca1ore]

I think with these things you listen to the people most likely to know what that are talking about: the scientists that study it! Not that they cannot be wrong, of course; after all science is about testing, validating and rejecting, hypotheses, but they are certainly more likely to be right than a lay-person that espouses their personal 'beliefs'. Always has seemed to me that if there is at least a chance of really bad $hit happening, we ought to do something about it. Sadly politicians, regardless of ideological dogma, are useless.