"That the government DESIRED to "sex up" its arguments, I think is beyond doubt...The evidence given under oath before Hutton clearly demonstrates that they didn't"

It seems to me that the evidence did not demonstrate anything of the kind. What Hutton decided was that, in adjusting the report so that it said what was wanted by the government ("sexing up"), and gave undue weight to the assertion that Iraq had WMDs, the guy in charge (with the splendid name Sir John Scarlett) was acting "subconsciously".

In other words the Government wanted the report to be "sexed up", its representative (Campbell) asked for it to be "sexed up", and it was "sexed up" - but Hutton decided that it this didn't happen because of any Governmental, insistance but of Scarlett's "subconscious" wish to do what the Government wanted himto do.

"Subconsciously"...That is an expression that will enter into political discourse in the same way as "being economical with the truth" did a few years, when the a top Civil Servant described what he had done in these terms.