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Report Warned Bush Team About Intelligence Doubts
WASHINGTON, Nov. 5 — A top member of Al Qaeda in American custody was identified as a likely fabricator months before the Bush administration began to use his statements as the foundation for its claims that Iraq trained Al Qaeda members to use biological and chemical weapons, according to newly declassified portions of a Defense Intelligence Agency document.

The document, an intelligence report from February 2002, said it was probable that the prisoner, Ibn al-Shaykh al-Libi, “was intentionally misleading the debriefers’’ in making claims about Iraqi support for Al Qaeda’s work with illicit weapons.

The document provides the earliest and strongest indication of doubts voiced by American intelligence agencies about Mr. Libi’s credibility. Without mentioning him by name, President Bush, Vice President Dick Cheney, Colin L. Powell, then secretary of state, and other administration officials repeatedly cited Mr. Libi’s information as “credible’’ evidence that Iraq was training Al 8Qaeda members in the use of explosives and illicit weapons.

Among the first and most prominent assertions was one by Mr. Bush, who said in a major speech in Cincinnati in October 2002 that “we’ve learned that Iraq has trained Al Qaeda members in bomb making and poisons and gases.’’ ...

...Mr. Libi, who was captured in Pakistan at the end of 2001, recanted his claims in January 2004. That prompted the C.I.A., a month later, to recall all intelligence reports based on his statements, a fact recorded in a footnote to the report issued by the Sept. 11 commission.

Mr. Libi was not alone among intelligence sources later determined to have been fabricating accounts. Among others, an Iraqi exile whose code name was Curveball was the primary source for what proved to be false information about Iraq and mobile biological weapons labs. And American military officials cultivated ties with Ahmad Chalabi, the head of the Iraqi National Congress, an exile group, who has been accused of feeding the Pentagon misleading information in urging war.

The report issued by the Senate intelligence committee in July 2004 questioned whether some versions of intelligence report prepared by the C.I.A. in late 2002 and early 2003 raised sufficient questions about the reliability of Mr. Libi’s claims.

But neither that report nor another issued by the Sept. 11 commission made any reference to the existence of the earlier and more skeptical 2002 report by the D.I.A., which supplies intelligence to military commanders and national security policy makers. ...