Grist Magazine online has a must-read story by North Carolina-based food editor Tom Philpott examining a possible link between the outbreak of swine flu and Smithfield Foods of Virginia, the world's largest pork producer and processor. Forty cases of the disease have been confirmed so far in the United States, including two cases in Texas, according to the U.S. Centers for Disease Control and Prevention. The outbreak of this particular strain of flu, which is caused by virus found in pigs, originated in the Mexican state of Veracruz, where Smithfield subsidiary Granjas Carroll raises about a million hogs a year,...