"Permitting an inquiry into what fragments of information various government agents knew, or should have known, and at what time, but did not tell the defendants, threatens thoroughly to confuse and prejudice the jury, distract from the major issues of the case, and add to the trial substantial expense and delay," the judge wrote.

A motion to admit the 9/11 Commission Report, published in 2004 and ordered by Congress, was denied except for a chronology of the report.

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