There is nothing particularly wrong with U.S.-Japanese relations these days. Thus there was nothing urgent about last week's visit to Washington of Japan's brusque, imperturbable Prime Minister Hayato Ikeda. He came to the U.S. mostly to score points at home, where, as is often the case with Japanese Prime Ministers, he is not very popular.
Ikeda, a stocky man with a hoarse voice who recovered from a near-fatal skin disease in the 1930s, proved highly durable on the Washington ceremonial circuit. He chatted, via interpreter, with President Kennedy at the White House, made a...