There was a question in one of the comments about any responses to Marburger's reply to the Union of Concerned Scientist's report on the corruption of science policy under Bush. The answer is yes; I've said a few words about it, but the best reply is to be found on Chris Mooney's site. His summary:
In my view, there are serious problems both with Marburger's strategy for rebutting the barrage of scientific charges against the administration, and with his specific rebuttal itself. Granted, Marburger scores a couple of points against the administration's critics. But these are really glancing blows. For the most part, the UCS document still stands relatively intact.
Really, though, this is one where you need to read the details.