Pulitzer Center: Squinting under the bill of his baseball cap, Leonary Marcus scans the treetops for ripe clusters of palm fruit to hack down with the aluminum scythe hanging from his shoulder. When a flame-red bunch catches his eye, he hooks the tool at the crux of the branch and yanks downward with all the muscle a 17-year-old can muster. The canopy shakes, a squawking bird flees and the fruit crashes to the ground in scattered heaps for him to gather into a rusty wheelbarrow. Leonary wipes the sweat from his face...