San Diego Union-Tribune
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March 15, 2007_Calexico, CA_A new moon shines over white buses that line a parking lot in Calexico, California at 5:00 a.m., on the United States side of the US/Mexico border crossing from Mexicali, Baja California. Labor contractors wait for the workers, who fill their buses in search of day work in the fields of Imperial Valley and Yuma, Arizona. Floodlights illuminate the border crossing between the United States and Mexico._Mandatory Credit photo by Laura Embry/San Diego Union-Tribune/Zuma Press, copyright 2007 San Diego Union-Tribune