In early January, Flor Sánchez departed from her Yakima Valley home in Sunnyside, leaving behind her husband and then six-year-old son — both U.S. citizens — to self-deport to Sinaloa, Mexico. For 12 years, she worked in the fruit orchards of central Washington, one of thousands of undocumented men and women who remain a vital part of the labor force in a region that produces most of the nation's apples. Sánchez, 41, had hoped to gain legal residency in the United States.