McALLEN, Texas (AP) A map showing President Bush's planned border fence with Mexico is raising concerns in South Texas.
City officials in the heavily populated valley had anticipated a "virtual'' fence of surveillance cameras and patrols.
Instead, a Customs map depicts a structure running piecemeal along a 600-mile stretch from Presidio to Brownsville.
The map, obtained by The Associated Press, was sent to some Texas cities with a memo addressed to ``Dear Texas Homeland Security Partner.''
The plan is to build 370 miles of fence and 200 miles of vehicle barriers by the end of 2008.
Hidalgo County Judge J.D. Salinas says a fence would damage the economy of the region, which thrives on cross-border commerce.
An aide to Homeland Security Secretary Michael Chertoff says a so-called virtual fence won't work in urban areas. Agents will use advanced sensors, radar and aerial drones in remote border areas.