One goal of the programs is to prevent hostile nations from luring those scientists to work on clandestine nuclear programs.

We know he has a clandestine program, spread over many hidden sites, to enrich Iraqi natural uranium to weapons grade.

The agency had, for once, been successful in exposing a clandestine program - and for that very reason, it lost control over the program.

No way he could be tied to a clandestine program.

"Everything that came out initially about the Iranian clandestine program was from this organization," he said.

But in 1995 the Iraqis admitted to a clandestine program for making germ weapons.

Last week, Iraq said it had been running a total of three clandestine programs to enrich uranium.

How else could he have installed his clandestine wake-up program?

"This program has attracted considerable attention as a possible prelude to a clandestine nuclear program."

Libya, too, was found to have a clandestine program, which it has since dismantled.