Diffuse security threats
Subtitle: USPS air filtration systems need more testing and cost benefit analysis before implementation : report to congressional committees
By: United States General Accounting Office.
Publisher: The Office
Published: 2002
Place of publication: Washington, D.C
Language: eng
Number of pages: 24
Subjects: United States Postal Service -- Security measures.; Postal service -- Security measures -- United States.; Air filters -- United States -- Evaluation.
Other titles: USPS air filtration systems need more testing and cost benefit analysis before implementation
Notes: Cover title.
"August 2002."
"GAO-02-838."