29 SEPTEMBER 2005 - SIERRA VISTA, AZ: Contract workers at Ft. Huachuca, a US Army base in Sierra Vista, service a Predator, an Unmanned Aerial Vehicle, used by the Border Patrol for surveillance along the Arizona stretch of the US/Mexico border. The aircraft are flown along the US Mexico border by US Border Patrol agents based in Texas and Arizona. The U.S. Customs and Border Protection (CBP) agency flies thePredator drones at an altitude of 15,000 feet for policing immigration, drug smugglers and terrorists along the U.S.-Mexico border. PHOTO BY JACK KURTZ