Alarmed by cross-border sales of ill pets, animal groups push for law By Vincent J. Schodolski Tribune national correspondent SAN DIEGO -- Sandra McConkey's cocker spaniel had just died. Halloween was approaching when she and her daughter Ashley, then 14, were walking through the parking lot of the Plaza Bonita mall here. All of a sudden Ashley started shouting, McConkey recalled. "Mommy, look, puppies, let's buy one!" There in a box were two cocker spaniel puppies. "They were adorable," McConkey said. "They looked just like our dog who had died." McConkey said she bargained with the Mexican woman selling the...