Obama hits the Great Wall of China

One businessman's vantage point explains more eloquently than words why Barack Obama ran straight into a Great Wall last week when he tried to persuade China to let its currency rise. From his office window overlooking the container port of Ningbo, near Shanghai, Huang Ping watched the collapse of Chinese exports as cranes stood motionless and only a few ships set out to sea. Now he is watching the recovery gathering pace before his eyes. "There was hardly any traffic," the technology manager...