Whenever she can, Irma Morantes sends $100 or so to help out her mother, who still lives in Mexico. The frequency of her gifts, though, depends on whether Morantes is working at the time and can spare the money. “If I’m not working, then my husband and I will only send money on her birthday or for a special occasion.” She cherishes each opportunity to send money to family members back home, knowing every little bit is appreciated and can make a big difference in their lives. Like most topics in the tempestuous debate over immigration reform, getting past the...