It may be the most successful American revolution since 1776, the bottom-to-top renovation of tomato business. The point: to get tomato pickers closer to a living wage and more humane working conditions. The farm fields, in Florida and up the east coast as far as Virginia that produce close to half of all the tomatoes eaten in the United States meet that standard. Look for the Fair Food label. Susan Marquis, Dean of the Graduate School at the RAND Corporation and the author of I AM NOT A TRACTOR, on the tomato revolution and how it was accomplished.