...Firstly, the man suspected of being the ringleader of the Sept. 11 hijackers, Mohammed Atta, was supposed to have met with an Iraqi intelligence official in Prague, the capital of the Czech Republic, in April 2001. But Czech intelligence - the original source of the report - later recanted, and U.S. intelligence officials now believe that Atta was in the United States at the time of the supposed meeting.

The Iraqi official, Ahmed Khalil Ibrahim Samir al-Ani is now in U.S. custody.

Secondly, U.S. officials said Iraq was harboring an alleged al-Qaida terrorist named Abu Mussab al-Zakawi.

But the government official who has seen the report poured scorn on the evidence behind this claim.

"Because someone makes a telephone call from a country, does not mean that the government of that country is complicit in that," he told UPI.

"When we found out there was an al-Qaida cell operating in Germany, we didn't say 'we have to invade Germany, because the German government supports al-Qaida.' ... There was no evidence to indicate that the Iraqi government knew about or was complicit in Zakawi's activities."

Newsweek magazine has also reported that German intelligence agencies - having interrogated one of Zakawi's associates - believed that Zakawi was not even an al-Qaida member, but headed a rival Islamic terror group.

Thirdly, defectors provided to U.S. intelligence by the then-exiled opposition group, the Iraqi National Congress, said that Islamic terrorists had been training to hijack airliners using a disused plane fuselage at a camp in Salman Pak in Iraq.

"My understanding was that there was an alternate explanation for that," said the government official, suggesting that that they were doing counter terrorism training there. "I'm not saying that was the explanation, but there were other ways of looking at it."

Fourthly, officials have cited a series of meetings in the 1980's and 1990's between Iraqi officials and al-Qaida members, especially in Sudan.