The document, called a national intelligence estimate, was issued last October.
This report was known to be false at the time it was issued since American intelligence became aware of the nuclear weapons facility at Qum before the report was issued.
Warrants for the arrest of Col Gaddafi's arrest, his son Saif al-Islam and chief of intelligence Abdullah al-Sanussi were issued in June.
And did you personally approve the issuance of that warning? A. I'm aware of the intelligence that caused the warning to be issued.
Officials said they now tried to make certain that threat warnings are issued only when intelligence about them is both credible and specific.
If the use of the weapons was confirmed, they would look, in trying to determine who used them, at factors like how they were delivered, which combatants had that capacity, and intelligence on what orders might have been issued.
"Even more troubling," he added, "is the fact that the uranium statement appears to be but one of a number of questionable statements and exaggerations by the intelligence community and administration officials that were issued in the buildup to the war".
This week, he claimed American intelligence was behind arrest warrants issued by a senior Iraqi judge against him and his nephew, Salem Chalabi, who is currently the head of the tribunal trying the case against Saddam.
"They have gone into an enormous defensive mode," Mr. Rockefeller said today, referring to efforts by the White House and Republican lawmakers to tamp down the issue of whether intelligence was manipulated.
Asked whether intelligence was provided to foreign governments, she said: "We don't comment on intelligence issues.
