Assessment of risks at the northern border and the infrastructure necessary to address those risks : joint hearing before the Subcommittee on Economic Security, Infrastructure Protection, and Cybersecurity joint with the Subcommittee on Emergency Preparedness, Science, and Technology of the Committee on Homeland Security, House of Representatives, One Hundred Ninth Congress, second session, August 8, 2006.

United States.
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Annen tittel	Assessment of risks at the northern border and the infrastructure necessary to address those risks
Emner	Border patrols - Northern boundary of the United States. Border security - Technological innovations - United States. Border security - Northern boundary of the United States. Terrorism - Prevention. - United States
Geografisk emneord	Canada - United States. - Relations . - United States - Canada. - Relations