OAXACA, MEXICO -  NOVEMBER 8:  Brothers Angel, 11, and Israel Hernandez Tejeda, three, drive home from harvesting corn in their family's field on November 8, 2006 in San Pablo Huixtepec. The boys father and two older brothers are in the United States illegally. Angel is now the man of the house. Due to stricter and more risky border patrol, migrants living in the U.S. are not returning home to Mexico in fear they will not be able to get back across the border. Immigration is tearing apart families and changing the societal roles in rural Mexico. Children are growing up not knowing their fathers and do the jobs of men.  (Photo by Dana Romanoff/Getty Images)