Transportation security
Subtitle: DHS should address key challenges before implementing  the transportation worker identification credential program : report to congressional requesters
By: United States Government Accountability Office.
Publisher: GAO
Published: 2006
Place of publication: Washington, D.C
Language: eng
Number of pages: 52
Subjects: United States. -- Transportation Security Administration; Airports -- Security measures -- United States; Identification cards -- United States
Notes: Cover title.

"September 2006."

"GAO-06-982."

Includes bibliographical references.