In Dallas, a 93-year-old is worried about the woman who, for years, has come to her house four days a week to help with shopping, laundry, housecleaning and driving. “She’s just a wonderful person, someone I feel I can trust completely,” said the older woman.  But because her helper is an undocumented immigrant from Mexico, both women increasingly fear that she’ll be detained and deported. (I’m withholding their names for that reason.)