This past Sunday, James Carville mocked the discovery of buried uranium-enrichment equipment in the backyard of Shukur Ubaydi – a key leader of Iraq's drive to obtain nuclear weapons prior to the 1991 Gulf War. Carville derided the centrifuge parts as looking like "a carburetor some redneck would have in his garage." NBC's Russert did not challenge Carville on this astonishing display of partisanship dressed up as ignorance, but the statement revealed a great deal about Democratic strategy on the WMD debate that has already begun: Deny the relevance and importance of every piece of evidence, and assert that nothing...