With 2 1/2 miles of border fencing along one Arizona ranch completed, the Minuteman Civil Defense Corps plans to build a stronger security fence several miles east. Connie Hair, a spokeswoman for the group, which opposes illegal immigration, said Wednesday that construction of vehicle barriers will start soon on the first fence project, headed by contractor Peter Kunz. An 800-foot section of the five-strand barbed wire fencing constructed on the ranch owned by Jack Ladd and his son, John, had to be restrung after vandals cut the wire strand-by-strand within about 4 inches of each support post, Hair said. After...