Arizona's controversial immigration law will come into effect tomorrow, unless a federal judge says otherwise. We take a look across the border to Loma Buenavista, Mexico. Sixty percent of the town's population is thought to have crossed the border into Arizona. The 800-person town depends on residents' relatives in the U.S. to send money back home; if their relatives leave, the town stands to be significantly affected by this new law. 

A former Mexican presidential candidate, and close friend of Mexican President Felipe Calderon, is feared dead after he went missing over the weekend. Authorities believe Diego Fernandez de Cevallos was kidnapped by organized criminals in what may be a direct attack on the government. We talk with Inma Gil, a reporter with the BBC who is Mexico City, for reactions to the kidnapping.