Lacking Biolabs, Trailers Carried Case for War

The technical team's findings had no apparent impact on the intelligence agencies' public statements on the trailers. A day after the team's report was transmitted to Washington -- May 28, 2003 -- the CIA publicly released its first formal assessment of the trailers, reflecting the views of its Washington analysts. That white paper, which also bore the DIA seal, contended that U.S. officials were "confident" that the trailers were used for "mobile biological weapons production."

Throughout the summer and fall of 2003, the trailers became simply "mobile biological laboratories" in speeches and press statements by administration officials. In late June, Secretary of State Colin L. Powell declared that the "confidence level is increasing" that the trailers were intended for biowarfare. In September, Vice President Cheney pronounced the trailers to be "mobile biological facilities," and said they could have been used to produce anthrax or smallpox.

By autumn, leaders of the Iraqi Survey Group were publicly expressing doubts about the trailers in news reports. David Kay, the group's first leader, told Congress on Oct. 2 that he had found no banned weapons in Iraq and was unable to verify the claim that the disputed trailers were weapons labs. Still, as late as February 2004, then-CIA Director George J. Tenet continued to assert that the mobile-labs theory remained plausible. Although there was "no consensus" among intelligence officials, the trailers "could be made to work" as weapons labs, he said in a speech Feb. 5.

Tenet, now a faculty member at Georgetown's Edmund A. Walsh School of Foreign Service, declined to comment for this story.

Kay, in an interview, said senior CIA officials had advised him upon accepting the survey group's leadership in June 2003 that some experts in the DIA were "backsliding" on whether the trailers were weapons labs. But Kay said he was not apprised of the technical team's findings until late 2003, near the end of his time as the group's leader.

"If I had known that we had such a team in Iraq," Kay said, "I would certainly have given their findings more weight."

A Defector's Tales

Even before the trailers were seized in spring 2003, the mobile labs had achieved mythic stature. As early as the mid-1990s, weapons inspectors from the United Nations chased phantom mobile labs that were said to be mounted on trucks or rail cars, churning out tons of anthrax by night and moving to new locations each day. No such labs were found, but many officials believed the stories, thanks in large part to elaborate tales told by Iraqi defectors.

The CIA's star informant, an Iraqi with the code name Curveball, was a self-proclaimed chemical engineer who defected to Germany in 1999 and requested asylum. For four years, the Baghdad native passed secrets about alleged Iraqi banned weapons to the CIA indirectly, through Germany's intelligence service. Curveball provided descriptions of mobile labs and said he had supervised work in one of them. He even described a catastrophic 1998 accident in one lab that left 12 Iraqis dead.

Curveball's detailed descriptions -- which were officially discredited in 2004 -- helped CIA artists create color diagrams of the labs, which Powell later used to argue the case for military intervention in Iraq before the U.N. Security Council.

"We have firsthand descriptions of biological weapons factories on wheels and on rails," Powell said in the Feb. 5, 2003, speech. Thanks to those descriptions, he said, "We know what the fermenters look like. We know what the tanks, pumps, compressors and other parts look like."

The trailers discovered in the Iraqi desert resembled the drawings well enough, at least from a distance. One of them, a flatbed trailer covered by tarps, was found in April by Kurdish fighters near the northern city of Irbil. The second was captured by U.S. forces near Mosul. Both were painted military green and outfitted with a suspicious array of gear: large metal tanks, motors, compressors, pipes and valves.

Photos of the trailers were quickly circulated, and many weapons experts were convinced that the long-sought mobile labs had been found.