Daily life for Marlen Lopez sounds anything but easy: The undocumented worker cleans offices to pay her bills and hasn't seen her 8-year-old son since she left El Salvador three years ago. Yet Lopez is happy with her job, hopeful about the future and confident her son will one day graduate from college in the United States. For the 33-year-old Lopez, as for many other Hispanic immigrants, optimism about life in the U.S. appears to be partly a product of what she sees in the rearview mirror.
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