"The boy’s hometown, La Gloria, is also close to a pig farm that raises almost 1 million animals a year. The facility, Granjas Carroll de Mexico, is partly owned by Smithfield Foods, a Virginia-based US company and the world’s largest producer and processor of pork products. Residents of La Gloria have long complained about the clouds of flies that are drawn the so-called “manure lagoons” created by such mega-farms, known in the agriculture business as Confined Animal Feeding Operations
(CAFOs)." (thanks Matthew)