FBI says at least two attacks thwarted since Sept. 11

WASHINGTON -- The government's global manhunt has thwarted two terrorist attacks since Sept. 11 and gathered evidence suggesting collaborators were in various stages of planning on several other plots to harm U.S. interests here and abroad, officials said Thursday.

Evidence seized in raids in the United States and in Europe included plans or materials for an attack on the U.S. Embassy in Paris and an attack with explosives on a military site in Brussels, Belgium, the officials said.

The officials, who work in law enforcement and intelligence, spoke only on condition of anonymity. They said about two dozen arrests have been made across Europe of people suspected of being involved in the planning of those attacks.

The arrests have resulted from a global manhunt led by the FBI and aided by CIA intelligence that has produced dozens of raids and searches in the last two weeks.

Information about the overseas attacks first emerged this summer, well before the Sept. 11 hijackings, when authorities captured an alleged associate of Osama bin Laden and he began cooperating, officials said.

The alleged bin Laden associate, Djamel Begal, provided overseas authorities with information about possible targets and the names of others who might be involved, officials said.

A senior government official, speaking on condition of anonymity, said U.S. intelligence urged its European counterparts to begin rounding up suspects before Sept. 11.

Spanish Interior Minister Mariano Rajoy said authorities had been watching several of the collaborators for several months but lacked sufficient evidence to move in on them.

After the attacks on the World Trade Center and Pentagon, European police moved rapidly to capture as many of the alleged planners as possible.

They include about two dozen people arrested or detained in Spain, France, Britain, the Netherlands and Belgium. Several other suspected collaborators remain at large, the officials said.

Since the first wave of arrests, authorities have begun to make links between collaborators in different countries.

"We contacted Belgium and said, 'Hey, the guy you arrested was in Spain on such and such a date and met with these guys," Madrid Police Chief Juan Cotino explained. "That's how the link emerged."

Court records suggest three men arrested during a raid at a Detroit apartment earlier this month also had some information about the attack on Belgium.

Authorities have evidence the attack targeted a NATO installation and an American diplomat in Brussels, the officials said.

The thwarted attacks on Paris and Belgium illustrate the current reality facing U.S. authorities -- that bin Laden-backed terrorist intended to inflict far more damage on U.S. interests in the coming months.

FBI agents have gathered evidence and testimony -- some sketchy, some detailed -- suggesting several Middle Eastern men were in various stages of planning, training or exploring targets for additional attacks on U.S. soil.

Law enforcement and government officials caution that some evidence about the future plots is circumstantial at best, but it nonetheless compelled authorities to issue a series of warning in recent days, including that:

Crop-dusters might be used to spray chemical or biological agents.

Tanker trucks loaded with lethal poisons could be commandeered.

U.S. power plants and water supplies could be in danger.

One official said writings and literature seized in some raids suggested the terrorists appeared to have a motive beyond mass casualties -- paralyzing the U.S economy.

The Sept. 11 attacks are now seen as part of rapidly expanding terrorist activity among anti-American groups that have been working together loosely in the Middle East and Europe -- with key operatives in the United States. The U.S. government has repeatedly identified bin Laden as the mastermind.