"No physical wall is going to keep people from coming in," he said. "The core of the problem is an economic issue. We have integrated all of the markets in North America, but we have failed to integrate the labor market. It's the market forces that are bringing people here to work."
Officials said Chertoff had assured them they would be consulted before any fence went up.
"We met with Secretary Chertoff and we were given a commitment that he would talk to the locals before building a wall, so we're surprised that this is happening," Salinas said. "We feel there is already a structure there, which is the Rio Grande river."