Tortilla prices in México will rise by 18 percent next month, according to Mexico's National Chamber for the Tortilla and Dough Industry.

South American leaders are warning that increased production of biofuels may lead to a surge in food shortages.

Mexican farmers are replacing agave crops with corn for ethanol production. The switch may lead to decreased Tequila production in coming years.

México's government renews a deal to put a cap on tortilla prices. In early 2007, the price of tortillas spiked dramatically due to increased demand for corn from U.S. ethanol producers.

Fidel Castro gets back in the news by claiming that three billion people will die of hunger if the U.S. transitions into biofuel production. Some wonder if he's worried a "greener" U.S. will rely less on Cuban ally Venezuela for oil imports.

U.N. officials warn Brazil that increased ethanol production may lead to erosion of the Amazon rain forest.

An estimated 100 children are left stranded after 300 women are detained during an immigration raid in Massachusetts.

Congress debates over immigration reform this week. (via Metafilter)

Julieta Venegas releases her autobiography: De Mis Pasos. Conversaciones con Julieta Venegas – now in bookstores.

Marvel Comics kills off superhero Captain America. (via Oh No They Didn't)