American diplomacy is never without controversy, but who would have imagined that the standard protocol of a bow to the Japanese Emperor from U.S. President Barack Obama would have caused such a fuss?

Apparently, many rightwing critics in America complained that Mr. Obama bowed too low to the Emperor. Those America-centric conservatives took Mr. Obama's bow as a signal of America's weakness. Japan and most of the rest of the world saw that bow for what it was — a sincere gesture of respect and a step toward healthier relations.

Those who know Japanese culture even a little would not interpret this type of bow as subservience, much less as any indication of America's low status on the world stage. In Japan, bowing is as natural as taking off one's shoes when entering a home, though with more profound meanings. The conservative American critics of Mr. Obama would surely have found fault no matter how deep he bowed.