Before Charleston chefs can mine local crops for inventive seasonal recipes, thousands of migrant farm workers will descend on South Carolina's farms to pick and prune this year's peaches, tomatoes and berries. Last year, about 3,000 foreign workers arrived in the Palmetto State through the H-2A visa program, a federal initiative that provides farmers and growers with temporary labor where domestic labor is inconsistent.The state agencies and organizations working to protect these workers by ensuring they have access to legal aid, medical services, fair wages and proper housing will meet Friday to strategize how they can most effectively serve this summer's workers.