Ten days after the September 11, 2001, terrorist attacks on the World Trade Center and the Pentagon, President Bush was told in a highly classified briefing that the U.S. intelligence community had no evidence linking the Iraqi regime of Saddam Hussein to the attacks and that there was scant credible evidence that Iraq had any significant collaborative ties with Al Qaeda, according to government records and current and former officials with firsthand knowledge of the matter.

The administration has refused to provide the Sept. 21 President's Daily Brief, even on a classified basis, and won't say anything more about it other than to acknowledge that it exists.

The information was provided to Bush on September 21, 2001 during the "President's Daily Brief," a 30- to 45-minute early-morning national security briefing. Information for PDBs has routinely been derived from electronic intercepts, human agents, and reports from foreign intelligence services, as well as more mundane sources such as news reports and public statements by foreign leaders.

One of the more intriguing things that Bush was told during the briefing was that the few credible reports of contacts between Iraq and Al Qaeda involved attempts by Saddam Hussein to monitor the terrorist group. Saddam viewed Al Qaeda as well as other theocratic radical Islamist organizations as a potential threat to his secular regime. At one point, analysts believed, Saddam considered infiltrating the ranks of Al Qaeda with Iraqi nationals or even Iraqi intelligence operatives to learn more about its inner workings, according to records and sources.