Mexico sends more immigrants to the United States than any other country; some estimates put the figure at 400,000 each year. But some Mexicans are working to stem the flow of migration from where it originates, trying to resuscitate towns abandoned by able-bodied workers.
The movement of Mexicans northward into the United States has turned some areas into literal ghost towns; in many others only women and small children have been left behind. Communities are being torn apart as their most able workers leave to find jobs.
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