Diffuse security threats
Subtitle: technologies for mail sanitization exist, but challenges remain : report to Congressional Requesters
By: United States General Accounting Office.
Publisher: The Office
Published: 2002
Place of publication: Washington, D.C
Language: eng
Number of pages: 48
Subjects: United States Postal Service -- Security measures.; Postal service -- Security measures -- United States.
Notes: Cover title.
"April 2002."
"GAO-02-365."