There's no running water, questionable sanitation, and abject poverty. No, it's not Port-au-Prince, but towns along America's Mexican border, called "colonias," where many are illegal immigrants. Near Laredo, Texas, the U.S Census Bureau is reaching out, hoping the desperately poor will participate in next year's census. And as our Ed Lavandera found out, many in … Continue reading U.S. census reaching out to immigrants