In only a decade, Macau has exploded from a sleepy backwater to the world's casino capital. It was bound to happen. Macau, a former Portuguese colony that became a special administrative region within the People's Republic of China in 1999, was the only place in China where gambling was legal. With a consumer base of 1.3 billion mainland Chinese deprived of casino gambling, and the world's largest growing consumer class, international corporations rushed in to enter the games. As a result, the casino influx has permanently transformed the Macau peninsula: its ocean reclaimed, hillside...