William Pesek is an award-winning Tokyo-based journalist and author of "Japanization: What the World Can Learn from Japan's Lost Decades."
Currencies set to be the next flashpoint between Washington and Asia

A bank clerk counts Vietnamese dong banknotes: the U.S. Treasury Department accused Vietnam of devaluing its currency. © Reuters
William Pesek is an award-winning Tokyo-based journalist and author of "Japanization: What the World Can Learn from Japan's Lost Decades."