An early copy of the book was obtained by The Times.
Satellite photos obtained by The Times show that the site was disturbed even earlier, in 2006.
The New York Times obtained a copy of the report.
The New York Times obtained a copy of the report last week from a person involved in its development.
Correspondence obtained by The Times shows that she served as both tour guide and research contact.
The New York Times obtained a copy of the agreement the same day.
The New York Times obtained 9 of the 12 committee reports, which are all either in final form or near completion.
The New York Times has obtained the names and tried to trace the people involved.
The New York Times obtained a videotape of the interview late last week.
The New York Times obtained a copy of the internal report, which has not been made public.