In the long tradition of great powers using financial architecture as diplomatic leverage, US Treasury Secretary Jay Bessent traveled to Japan carrying not just a briefcase but a balance sheet — one that measured $1.3 trillion in American debt held by Japanese hands. His message was less a request than a reckoning: that the quiet fiscal conservatism Japan has long practiced is no longer a private national choice, but a variable in a global equation that Washington intends to influence. The visit marks a candid new chapter in economic statecraft, where bond markets serve as both the language an