
A fallen barbed wire fence is the only barrier between Mexico and the United States as illegal migrants cross near the town of Sasabe, state of Sonora, Mexico in this file photo taken Thursday, April 1, 2004. U.S. Border Patrol officials are seeing a significant increase in the number of illegal immigrants being smuggled through what's known as the Sasabe corridor southwest of Tucson. (AP Photo/Guillermo Arias, File) Original Filename: BUSY_CORRIDOR_LA501.jpg





