In addition to the five buildings, one of the counterterrorism officials said the information included references to the NASDAQ and American Stock Exchange buildings in New York and the Bank of America building in San Francisco. Two other facilities in New York and undisclosed buildings in Washington and New Jersey were also mentioned.
Following leads
But even with the extensive amounts of information, a full outline of a plot was not included, one official said. Instead, authorities are following leads. For instance, another official said surveillance reports were written in English, indicating the author spent significant time in the West.
And many of the paper documents showing the surveillance of US buildings were undated, meaning investigators must work backward to match particular descriptions of security with known details of security at the buildings at certain points in time to determine when the documents were created.
One link under investigation is between Khan, the source of the surveillance documents, and the 1998 embassy bombings in Kenya and Tanzania that killed more than 200 people, said the Justice Department official.
link to bombings
Shortly after Khan was captured, Pakistani police arrested Ahmed Khalfan Ghailani, a Tanzanian sought by US officials for the 1998 bombings in east Africa.
Under questioning, Ghailani -- who is cooperating with investigators -- corroborated the material that was found in the surveillance documents, said the senior Justice Department official.
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