It is best known as the site of the Joseph Curseen Jr. and Thomas Morris Jr. Processing and Distribution Center, the postal mail sorting facility through which anthrax-contaminated mail addressed to two members of the U.S. Senate passed in the 2001 anthrax attacks. Curseen and Morris were members of the American Postal Workers Union, AFL-CIO who died after exposure to the anthrax in the incident. The facility was closed October 21, 2001, because of anthrax contamination and did not reopen until December 21, 2003.