Melody Lopez, Rocio Herrera, Wendy Estrada, Valley College, Immigration, Labor, Baby Boomers
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Meeting the challenge

Melody Lopez, Rocio Herrera, Wendy Estrada, Valley College, Immigration, Labor, Baby Boomers
During class at L.A. Valley College, students Melody Lopez, left foreground, and Rocio Herrera check a thermometer, as does Estrada, far right. Among 21 students in class that day, 17 were immigrants from a range of countries: Mexico, India, Guatemala, Egypt, Honduras, Indonesia, Cuba, Congo, Ukraine and the tiny West African nation of Burkina Faso. (Brian Vander Brug / Los Angeles Times)
Wendy Estrada, Immigration, Labor, Baby Boomers
Estrada, far left, and others listen during a class that demonstrates the skills needed to become a nursing assistant. (Brian Vander Brug / Los Angeles Times)
Wendy Estrada, Immigration Labor Baby Boomers
Wendy Estrada came to the U.S. in 1998. She was so determined to master English that she went to classes morning and night, five hours a day, for a year. (Brian Vander Brug / Los Angeles Times)
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