实际上，虽然未来十年内中国、印度或巴西将超越美国的预言盛极一时，但在大国间实现传统权力转换的问题或许比不上现代蛮族（非国家势力）的崛起。
Indeed, for all the fashionable predictions of China, India, or Brazil surpassing the US in the coming decades, the classical transition of power among great states may be less of a problem than the rise of modern barbarians – non-state actors.