The previously undisclosed report was completed in April, two months before the military procurement investigation was disclosed in June.

About this time the New Jersey Manufacturers Insurance Company released its own projections, showing the same $1 billion deficit as the department's own actuaries in their as-yet undisclosed reports.

The previously undisclosed report was sent to British government agencies, foreign governments and corporations in mid-June, about three weeks before a team of four British suicide bombers mounted their July 7 attack on London's public transportation system.

The Park Police, whose investigators examined it, never said publicly that it existed, although the diary is mentioned in a still undisclosed report by the Park Police on its investigation into Mr. Foster's death, law-enforcement officials said.

In the months before the Sept. 11 attacks, federal aviation officials reviewed dozens of intelligence reports that warned about Osama bin Laden and Al Qaeda, some of which specifically discussed airline hijackings and suicide operations, according to a previously undisclosed report from the 9/11 commission.