1.   About a third of American warheads could now be taken off alert without risking national security.

2.   But in a report issued late Sunday night by the New China News Agency, Chinese scientists vehemently deny that Lee gave away plans for making advanced American warheads.

3.   But they become more valuable when combined with specific performance data, which would then enable someone to generate a computer simulation of American warhead designs.

4.   The document contained evidence that China had stolen design data on American nuclear warheads and missiles.

5.   The report added that the intelligence community believed Beijing had probably used the information not to copy American warheads but to accelerate its own program.

6.   Yet Trulock and his team were able to prove that the classified information about American warheads included in the document was accurate.