The legendary travel writer drives the entire length of the US-Mexico border, then takes the back roads of Chiapas and Oaxaca, to uncover the rich, layered world behind the everyday headlines. Paul Theroux has spent his life crisscrossing the globe in search of the histories and peoples that give life to the places they call home. Now, as immigration debates boil around the world, Theroux has set out to explore a country key to understanding...