Border Patrol BORSTAR Team Searches for Dying Illegal Immigrants

392795 28: BORSTAR agent David Howard follows footprints through a harsh landscape of scattered cattle skeletons, July 29, 2001 on the Tohono O''odham Indian Reservation, west of Tucson, AZ. Because the footprints seemed to make irrational turns, Howard feared that someone could be suffering from heat-related delirium leading to serious trouble. Two women were later found to be in reasonable condition about 50 miles north of the border. (Photo by David McNew/Getty Images)