And the story changes yet again.

How do this administration's supporters continue to defend its honesty when the story changes every couple of days?

The CIA sent two memos to the White House in October voicing strong doubts about a claim President Bush made three months later in the State of the Union address that Iraq was trying to buy nuclear material in Africa, White House officials said yesterday.

The officials made the disclosure hours after they were alerted by the CIA to the existence of a memo sent to Bush's deputy national security adviser, Stephen J. Hadley, on Oct. 6. The White House said Bush's chief speechwriter, Michael Gerson, on Friday night discovered another memo from the CIA, dated Oct. 5, also expressing doubts about the Africa claims.

The information, provided in a briefing by Hadley and Bush communications director Dan Bartlett, significantly alters the explanation previously offered by the White House. The acknowledgment of the memos, which were sent on the eve of a major presidential speech in Cincinnati about Iraq, comes four days after the White House said the CIA objected only to technical specifics of the Africa charge, not its general accuracy.

In fact, the officials acknowledged yesterday, the CIA warned the White House early on that the charge, based on an allegation that Iraq sought 500 tons of uranium in Niger, relied on weak evidence, was not particularly significant and assumed Iraq was pursuing an acquisition that was arguably not possible and of questionable value because Iraq had its own supplies.

Yesterday's disclosures indicate top White House officials knew that the CIA seriously disputed the claim that Saddam Hussein was seeking uranium in Africa long before the claim was included in Bush's January address to the nation. The claim was a major part of the case made by the Bush administration before the Iraq war that Hussein represented a serious threat because of his nuclear ambitions; other pieces of evidence have also been challenged.

Look, if they were being straight, the excuses wouldn't constantly evolve in response to every new bit of info that leaks out. Interesting the timing of the release of this memo, though. Think the CIA might be pissed about Joseph Wilson and Valerie Plame?