A United States Postal Service employee is shown delivering mail to Senator Tom Daschle's office. Employees of the United States Postal Service do not deliver mail to the offices of the Senate. Mail is delivered by employees of the Senate Mailroom, a division of the Senate Post Office.
The atrium of the Hart Senate Office Building is shown without the Mountains and Clouds sculpture by Alexander Calder. While the Clouds portion was removed in 2014, the entire sculpture was still present in October of 2001 when the scene takes place.
In the scene where they are tracking a letter's route, the computer screen reads Hamilton NY, when it should be Hamilton NJ.