John Moore: Pan-American Highway
© AP Photo/John Moore
After capture by U.S. Border Patrol agents, illegal Mexican immigrants wait to be transferred to a processing center near Laredo, Texas. Aug. 8, 2001. The Border Patrol generally returns the illegal Mexican immigrants to the international bridge, the beginning of the Pan-American Highway, where they cross back into Mexico, often only waiting a few days before trying again to cross into the United States.