Some Mexican shoppers felt the price freeze came too late to do much good. "Six months? And what happens after that?" said Petra Castaneda, a 55-year-old retired civil servant who was leaving one grocery store empty handed to seek a better deal for cheese elsewhere. She said hearing Calderon's announcement over the radio only infuriated her more. "All the prices have already risen, it would be ridiculous if they rose even more. Of course they freeze them now," she said. -AP mexico.vg...