Iraqi scientists have said the units were used to produce hydrogen for weather balloons.

No one knows what Iraqi scientists have been up to for the past three years, but there is good reason to fear the worst.

An Iraqi scientist agreed to be interviewed in private, without a government witness.

Iraqi scientists had the knowledge and the designs needed to jumpstart the program if necessary.

The inspectors asked what the computers were used for, the Iraqi scientists said, but did not read anything on them.

"We also would like to see active cooperation in freely interviewing Iraqi scientists."

Iraqi scientists built their germ warfare program themselves, he said.

He said the inspectors had been "talking to a lot of Iraqi scientists, anyone who has known where they are, they've spoken to.

We need to locate Iraqi scientists with knowledge of these programs.

The official said it was important to get names of Iraqi scientists who joined the programs since the inspectors left four years ago.