[Note: This is a long read, but worth it. This is how small town California has to deal with the illegal alien problem -- but with a strange twist. It is not the usual sob story; it gives some depth to the whole miserable mess and raises some very ugly questions.] Immigrants contend with economics, culture in pregnancy As she shepherds scores of Monterey County's most vulnerable mothers-to-be through their pregnancies, Celia Serrato has learned to communicate without words. Two-thirds of her patients at Clinica de Salud in Greenfield are indigenous Mexicans from the impoverished southern state of Oaxaca. Many...