Pintsized as a pea or big as a bowling ball, nutritional, durable, and versatile, nuts have been a staple of the human diet since time began, and archaeological evidence places them among our earliest foods. For that, the ancients worshiped them. And because they were relatively non-perishable, nuts sustained the imperial armies of Rome and China, the royal navies of England and Spain, and the native tribes that roamed the American wilderness. Today, we think of nuts as mere snacks, but in a poignant segment, we feature how a peanut product is used by organizations like UNICEF to reverse malnutrition in starving children in less than four weeks. And a powder ground from walnut shells cleans everything from ship hulls to the Space Shuttle. From ancient traditions of tree-picking and hand-gathering to today's powerful machine shakers, sophisticated irrigation techniques, and the latest bio-science, we'll provide a spread of history that's just as smooth as your peanut butter!