11.   She said the machines would be used for both advanced weapons designs and a variety of modeling problems ranging from weather prediction to computational fluid dynamics.

12.   Still, Narath said that some categories of information would always be secret, like weapon design, no matter how old.

13.   Take, for example, the information about weapons designs that are out on the World Wide Web.

14.   Technologically advanced states would continue to develop and improve weapons designs through subcritical or nondetectable tests.

15.   The most important change needed is much more careful selection, training and supervision of employees in weapons design and simulation.

16.   These insights play such an important role in weapons design that everyone recognizes the need for secrecy.

17.   Verifying a new weapon design required a half dozen or so large test explosions, while improving safety took still more.

18.   When Knight last saw him, the two spoke of problems Knight was having with a weapon design.

19.   Without exploding a sample of the bombs, they say, they can never reach clear-cut conclusions about the continued reliability of a given weapon design.

20.   Iraq has made no progress in giving U.N. inspectors information about weapons design, uranium enrichment and nuclear exports, Richardson said.