Border SecurityBorder Security, MicroformMoving Beyond the Virtual Fence : Hearing Before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Eleventh Congress, Second Session, April 20, 2010
Border SecurityBorder Security, Website or Online DataMoving Beyond the Virtual Fence : Hearing Before the Committee on Homeland Security and Governmental Affairs, United States Senate, One Hundred Eleventh Congress, Second Session, April 20, 2010