Monday, May 11, 2009

Work under way on ‘virtual fence’ - NYTimes.com

May 8, 2009

WASHINGTON — After three years of delays and false starts, construction began this week on a “virtual fence” aimed at stopping illegal immigration and smuggling along the border with Mexico.

The first phase of the $6.7 billion project — a network of towers rigged with cameras, sensors and communications equipment — will cover about 23 miles south of Tucson, in the busiest area for illegal crossing...