"On one covert video, farm workers illegally burn the ankles of Tennessee walking horses with chemicals. Another captures workers in Wyoming punching and kicking pigs and flinging piglets into the air. And at one of the country’s largest egg suppliers, a video shows hens caged alongside rotting bird corpses, while workers burn and snap off the beaks of young chicks."

"Listeria in cantaloupes. Salmonella in peanuts. E. coli in spinach. Hepatitis A in green onions. In the past decade a rash of tainted food has resulted in thousands of hospitalizations and hundreds of deaths. It has also prompted the most sweeping reform of U.S. food safety laws in more than 70 years."

"SHANGHAI/HONG KONG --  Chinese authorities slaughtered over 20,000 birds at a poultry market in Shanghai on Friday as the death toll from a new strain of bird flu mounted to six, spreading concern overseas and sparking a sell-off in airline shares in Europe and Hong Kong."

"The government on Thursday recommended the removal of four hydroelectric dams on the Klamath River in Oregon and California to aid native salmon runs and help resolve a decades-long struggle over allocation of scarce water resources."

"Scientists taking a first look at the genetics of the bird flu strain that recently killed two men in China said Wednesday that the virus could be harder to track than its better-known cousin H5N1 because it might be able to spread silently among poultry without notice."

"The so-called 'Monsanto Protection Act,' a controversial provision protecting the biotech giant from litigation, has found an unusual critic in the tea party."

"Current climate-induced drought is slipping into a trend that scientists say resembles some of the worst droughts in U.S. history, like the Dust Bowl."

"Snow-surveying crews across the Sierra are seeing bad news up close this week. California has about half a snowpack."

"Many pesticides used in consumer products and agriculture received federal approval through a loophole that doesn't require thorough testing, according to a study released Wednesday by an environmental group."

For a while, the Naga Viper was the hottest pepper in the world. Today, breeding peppers for hotness is an area of military research.