From the National Review.

Somehow, the fact that Wilson said he, acting alone, found no evidence of attempts by Iraq to obtain uranium materials from Niger has been taken as gospel by the antiwar people, despite the insistence by British intelligence that their information, which has nothing to do with Wilson, still shows a possible link.

Where did Wilson get this omniscience?

Again we see the pattern of the Left accepting as absolute proof any comment, analysis, or other input from people whose accounts meet their agenda. People (defectors, analysts, etc.) who have input that contradicts this agenda are discarded as liars, or not credible.

Oh, you did know that Iraq had purchased uranium from Niger in the past, didn't you?