Having read your sorces i think the last section of the BBC artical is the most relavent ...none of this has been confirmed by peer tests or second source evidence ... the question of contamination is the most relavent .... so in the best traditions of science this is not accepted data , it need ivestigation and the results need to be reproduced , as the BBC artical ends many similar claims have be shown to be wrong .
Science does not work on headlines , it works on confirmation , querring , testing and retesting .
to try to use this data to argue for or verses any other scientific idea is NOT scientific ..
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