Who or what are the maquiladoras? death squads that hunt and kill the beggar children of brazil elite members of mexico's newly emerging industrial capitalists assembly-for-export factories along the mexican border mexican migrant workers who cross the border to pick crops in the u. s?

Maquiladoras are "assembly-for-export factories along the Mexican border." In Spanish, "máquina" means "machine," so we can think that "maquiladora" (which sounds similar) has to do with making machines, or that the maquiladora itself is run like a machine, since the employees often work in assembly lines. Another word for "maquiladora" is "maquila," which further bolsters this word association to "máquina." 

Not a question but you !