Huddled around a single flickering candle in a tiny wood and cardboard shack on scrubland in Mexico's northwest, laborer Genaro Perfecto and his family prepared to bed down for the night on a bare earth floor.
His 3-year-old daughter asked for an extra blanket to ward off the cold, but they had run out - a measure of their hard-scrabble life spent harvesting fruit bound for U.S. dining tables.
Since March, thousands of day laborers have blocked roads, staged marches and held meetings with lawmakers to protest the grind of picking strawberries, raspberries and blackberries in . . .
