TUCSON, Ariz. -- "We're under siege," said rancher Ed Ashurst as he pointed to where he had tracked the killer of his friend and neighbor to the U.S.-Mexico border. "Five years ago, we didn't even bother to lock our doors. Now my wife and I carry firearms everywhere we go."
John Ladd is a fifth-generation cattle rancher in southern Cochise County, Ariz. The southern boundary of his family property is a 10-mile stretch of steel fence erected by the U.S. government. On the other side of the fence: Mexico. He told us, "Mexican drug cartels are running this...












Under Siege