Every winter thousands of Mexican farm workers endure a season of backbreaking work in order to supply the U.S. with lettuce and make a living. Most workers get up around 4:00 a.m. to make the trip across the border and get into one of the old school buses that takes them for the long hard day of work. Although they only make about $8.50 an hour, this is still a coveted job among Mexicans that live in the border area of Yuma.