Every Sunday, a dozen volunteers, led by Cowan or Castillo, would assemble in Tucson and board the Manzo van, a giant Dodge emblazoned with the words Basta con la migra (No More Immigration Police). They’d drive all night to a dilapidated roadside motel in the town of El Centro called the Golden West—a ring of rooms around a grimy pool—where they’d set up workstations.
