Southwest border fence nears completion; about one-tenth of the project still to be built

Fewer people are illegally crossing the US-Mexico border due to the 601 miles of fence already build with 69 left to go. Along with the fence the overall plan icludes more border patrol agents, and a high tech virtual fence using surveillance technology. Congress set aside 2.7 billion for the fence in 2006 with no estimate on how much it'll cost to build and maintain.