While the scandal is certainly contrived, I'm not sure it's dead quite yet. There will be other permutations until the evidence currently being gathered in Iraq is put together.
Not that critics of the Iraq war will be fazed, but I don't think it's reasonable to expect an "aha" moment every time any WMD or related material is found. This is intelligence work, and blabbing about one discovery might botch another.
The one area where the Administration could do a better job is with regard to managing expectations. Something along the lines of: "the search and for WMDs is proceeding and making progress. While the investigation is ongoing, we'll have no comment that might jeopardize our efforts to take these weapons into our safekeeping."
