DETROIT -- Fifteen immigrant women who missed work to attend an immigrant rights rally last month have been fired. The general manager of a Detroit meat packing company said the women were warned they would lose their jobs if they skipped work on March 27. The workers said they received no such warning. All of the women are natives of Mexico. Many had worked at Wolverine Packing for several years, and some are undocumented immigrants An activist trying to get the women's jobs back said they were fired "for standing up for their rights."