John Moore: Pan-American Highway

© AP Photo/John Moore
U.S. Border Patrol supervisor Dan Garibay scans the Rio Grande for illegal immigrants and drug smugglers while overlooking the Laredo, Texas, International Bridge number 3 which crosses into Nuevo Laredo, Mexico, Aug. 8, 2001. The bridge is the busiest commercial border crossing in the world, with nearly 10,000 trucks crossing every day.
© 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.
© AP Photo/John Moore
An illegal Mexican immigrant, his shirt torn by thorns while trying to flee U.S. Border Patrol agents, awaits processing at a temporary detention center in Laredo, Texas, July 20, 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.