When the U.S. economy crashed in 2008, veterinarians felt the bite as fewer people took pets to the vet. So Dr. Kipp Metzger, general practitioner veterinarian and owner of Animal Health Hospital, P.C.,...

[UPDATED: This story has been updated to reflect more recent news about drug tunnels at the border.] NOGALES, Ariz. -- Successful tunnel-building requires engineering, planning, equipment, money, and a...