"There is a suspicion that some people had advance knowledge of the approximate time of the plane crashes in order to move out amounts exceeding $100 million,'' Wagner said. "They thought that the records of their transactions could not be traced after the main frames were destroyed."
"We have been quite surprised that so many of the hard drives were in good enough shape to retrieve the data,'' he [Henschel] said.
"The contamination rate is high. The fine dust that was everywhere in the area got pressed under high pressure into the drives. But we've still been able to retrieve 100 percent of the data on most of the drives we've received."
911blogger.com/news/2008-06-28/what-happened-wtc-hard-drive-recoveries-convar