In recent years the country has found itself in a sharply different geopolitical environment, responding by building bases and security-partner ties as never before. Our correspondent meets perhaps the last living offspring of an American slave, whose stories paint a picture of the civil-rights movement right up to today. And Thailand’s changing cannabis policy, best seen through its restaurants’ menus.

For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer