27 JULY 2001 - NACO, ARIZONA, USA: Butch Gamboa, a 5 1/2 year veteran of the US Border Patrol, searches a member of a group of undocumented immigrants he caught trying to enter US illegally near Naco, AZ, July 27, 2001. Undocumented immigration from Mexico through southeastern Arizona has gone down by more than 40 percent in 2001 because of increased Border Patrol activity along the Arizona/Mexico border. .PHOTO BY JACK KURTZ .NMR