OMEGA, Ga. -- Randy Scarbor was counting on the 15 immigrant workers who lived on his farm to harvest his 60-acre sweet-potato crop last fall, but they vanished just as the work got underway. He instead was forced to bring in some less-motivated substitutes for the backbreaking job. "I wound up hiring some locals that weren't worth hauling to the field," he said. "It was the worst harvest labor in my life and I've been in the farming business 35 years. But we got it in." Scarbor believes most of his regular workers were lured away to the Gulf Coast...