A truck drives on the Mexican-side of the border fence between Naco and the San Pedro Riparian National Conservation area in this 2007 file photo. Two agents assigned to the Border Patrol's Naco station were shot Tuesday morning. One agent died. A U.S. Border Patrol agent was killed and another wounded early today in a shooting near the U.S.-Mexico border. The agents were on duty near Bisbee when the shooting occurred about 2 a.m., according to various wire reports. The wounded agent was airlifted to a hospital. He was reportedly shot in the ankle and buttocks, the Associated Press reported....