Lacking Biolabs, Trailers Carried Case for War

Yet reaction from Iraqi sources was troublingly inconsistent. Curveball, shown photos of the trailers, confirmed they were mobile labs and even pointed out key features. But other Iraqi informants in internal reports disputed Curveball's story and claimed the trailers had a benign purpose: producing hydrogen for weather balloons.

Back at the Pentagon, DIA officials attempted a quick resolution of the dispute. The task fell to the "Jefferson Project," a DIA-led initiative made up of government and civilian technical experts who specialize in analyzing and countering biological threats. Project leaders put together a team of volunteers, eight Americans and a Briton, each with at least a decade of experience in one of the essential technical skills needed for bioweapons production. All were nongovernment employees working for defense contractors or the Energy Department's national labs.

The technical team was assembled in Kuwait and then flown to Baghdad to begin their work early on May 25, 2003. By that date, the two trailers had been moved to a military base on the grounds of one of deposed president Saddam Hussein's Baghdad palaces. When members of the technical team arrived, they found the trailers parked in an open lot, covered with camouflage netting.

The technical team went to work under a blistering sun in 110-degree temperatures. Using tools from home, they peered into vats, turned valves, tapped gauges and measured pipes. They reconstructed a flow-path through feed tanks and reactor vessels, past cooling chambers and drain valves, and into discharge tanks and exhaust pipes. They took hundreds of photographs.

By the end of their first day, team members still had differing views about what the trailers were. But they agreed about what the trailers were not.

"Within the first four hours," said one team member, who like the others spoke on the condition he not be named, "it was clear to everyone that these were not biological labs."

News of the team's early impressions leaped across the Atlantic well ahead of the technical report. Over the next two days, a stream of anxious e-mails and phone calls from Washington pressed for details and clarifications.

The reason for the nervousness was soon obvious: In Washington, a CIA analyst had written a draft white paper on the trailers, an official assessment that would also reflect the views of the DIA. The white paper described the trailers as "the strongest evidence to date that Iraq was hiding a biological warfare program." It also explicitly rejected an explanation by Iraqi officials, described in a New York Times article a few days earlier, that the trailers might be mobile units for producing hydrogen.

But the technical team's preliminary report, written in a tent in Baghdad and approved by each team member, reached a conclusion opposite from that of the white paper.

Key Components Lacking

Team members and other sources intimately familiar with the mission declined to discuss technical details of the team's findings because the report remains classified. But they cited the Iraqi Survey Group's nonclassified, final report to Congress in September 2004 as reflecting the same conclusions.

That report said the trailers were "impractical for biological agent production," lacking 11 components that would be crucial for making bioweapons. Instead, the trailers were "almost certainly designed and built for the generation of hydrogen," the survey group reported.

The group's report and members of the technical team also dismissed the notion that the trailers could be easily modified to produce weapons.