U.S. Ambassador to Mexico Tony Garza said Thursday that the Bush administration is against proposals to build a wall along the United States' entire southern border. "The president is aware of the concerns of critics who would like to build a wall around the United States," Garza told a small group of foreign correspondents. "As the former governor of Texas, he knows that such proposals are both unrealistic and undesirable." Some lawmakers have proposed building a wall from California to the Gulf of Mexico to stop the millions of undocumented workers who sneak over the border with Mexico. Garza said...