From the award-winning author of American Canopy, a dazzling account of the world’s longest road, the Pan-American Highway, and the epic quest to link North and South America, a dramatic story of commerce, technology, politics, and the divergent fates of the Americas in the nineteenth and twentieth centuries.The Pan-American Highway, monument to a century’s worth of diplomacy and investment, education and engineering, scandal and sweat, is the longest road in the world, passa