Amajor U.S. beer manufacturer’s decision to build a giant production plant in Baja California’s desert capital has been cause for much celebration in Gov. Francisco Vega de Lamadrid’s administration. But not everybody is applauding. Constellation Brands, maker of Modelo and Corona beers, finds itself in the crossfire of a bitter dispute. On one side are government officials who are vowing to see the project through; on the other, opponents determined to shut it down, saying the plant will use a large amount of water that should go to local farmers.