Anthrax Nation.

Focuses on concerns about the presence of anthrax in mail in the United States. How the U.S. Postal Service ordered anthrax testing at a number of mail centers along the East Coast and random checks around the country; Response of the White House to the attacks; Statement of Ari Fleischer that the anthrax sent to Tom Daschle must have been produced by a Ph.D. microbiologist in a well-equipped lab; Implications of a meeting of terrorist hijackers Mohamed Atta and Marwan al-Shehhi with a pharmacist.