Vanity Fair: Proof that the Niger yellowcake lie was cooked up by the White House?

VANITY FAIR : FEATURES : CONTENT: "The Bush administration invaded Iraq claiming Saddam Hussein had tried to buy yellowcake uranium in Niger. As much of Washington knew, and the world soon learned, the charge was false. Worse, it appears to have been the cornerstone of a highly successful 'black propaganda' campaign with links to the White House"