The issue is not past costs, but future ones (Score 1)

Many posts above use the argument that public funding should yield open results. I'm all for that, but the stronger argument for opening the original source is that the future costs will be much, much greater. The Kyoto protocol will costs billions of $,£ or whatever, and the hockey stick has been "talismanic" in promoting the protocol. See Spot the hockey stick at McIntyre's web site.