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WASHINGTON -- Intelligence information suggests al-Qaida attacks may occur as early as this week in both the United States and on the Arabian peninsula, CIA director George Tenet told Congress on Tuesday.
The information led to last week's raising of the national terror alert level to "orange," the second highest level of five. The information came from "multiple sources with strong al-Qaida ties," Tenet said without providing details.
"The intelligence is not idle chatter on the part of terrorists and their associates," Tenet said. "It is the most specific we have seen, and it is consistent with both our knowledge of al-Qaida's doctrine and our knowledge of plots this network -- and particularly its senior leadership -- has been working on for years."
The information pointing to imminent attacks was gathered both in the United States and overseas, said FBI director Robert Mueller III, who joined Tenet and other intelligence chiefs to brief the Senate Intelligence Committee in an annual public session on threats to national security.
The CIA director said the information suggests the attack may involve a "dirty bomb" -- a weapon that spreads radioactive material over a wide area -- or chemical or poison weapons. Officials last week worried the attack was timed to coincide with the hajj, a Muslim holy period this week.
But Mueller and Tenet said the U.S. government has no specific information pointing conclusively to where, when or how terrorists would strike. They said raising the national alert level -- and taking security measures at government and business centers -- makes it more difficult for the terrorists to carry out an attack.
The CIA chief also repeated many of Secretary of State Colin Powell's statements last week to the United Nations regarding Iraq's efforts to acquire chemical, biological and nuclear weapons, and linking al-Qaida supporters to the Iraqi government. Tenet said the key link between Baghdad and al-Qaida is Abu Musab Zarqawi, a senior associate of bin Laden.
About two dozen of Zarqawi's followers remain in Baghdad, where Zarqawi spent two months last summer. All are members of Egyptian Islamic Jihad, a terrorist group that has merged with al-Qaida, Tenet said. But he said he has no evidence suggesting Iraq has any operational control over Zarqawi's group or al-Qaida.
Vice Adm. Lowell E. Jacoby, director of the Defense Intelligence Agency, predicted Iraqi President Saddam Hussein would lash out in many directions if attacked.
"I expect him to pre-emptively attack the Kurds in the north, conduct missile and terrorist attacks against Israel and U.S. regional or worldwide interests -- perhaps using WMD (weapons of mass destruction) and the regime's links to al-Qaida," Jacoby said in prepared remarks. "Saddam is likely to employ a scorched-earth strategy. . . . We should expect him to use WMD on his own people."
Tenet and Jacoby also raised the dangers of renewed nuclear weapons efforts in North Korea.
"Kim Jong Il's attempts this year to parlay the North's nuclear weapons program into political leverage suggest he is trying to negotiate a fundamentally different relationship with Washington, one that implicitly tolerates the North's nuclear weapons program," Tenet said.
Mueller and Tenet said al-Qaida is damaged but still dangerous. Mueller called it "clearly the most urgent threat to U.S. interests." It has a strong presence in Pakistan and Afghanistan and is developing a presence in Iran and Iraq, Tenet said.
The FBI suspects there are "several hundred" Muslim extremists in this country who focus mainly on fundraising, recruitment and training, Mueller said. But he said the greatest threat to Americans at home are "al-Qaida cells in the United States that we have not identified."
Some cells probably have been in the United States since before the Sept. 11 attacks, he said.
"The enemies we face are resourceful, merciless and fanatically committed to inflicting massive damage on our homeland, which they regard as a bastion of evil," Mueller said.