Even as there continues to be controversy over the release from prison of Jonathon Pollard as a quid pro quo for the Israelis over the international nuclear agreement with Iran, the US has to mollify Japanese leaders over spying allegations presented by Wikileaks. It's a commentary on US international power that the Japanese won't be able to imprison any Americans for espionage. This link indicates the low key approach the American administration is taking on the matter.
Joe Biden, US vice-president and expert on international affairs, has spoken with Japanese prime minister Shinzo Abe over Wikileaks revelations of US spying on Japanese government, banking and business.
Caroline Kennedy, inarticulate, non-Japanese-speaking US ambassador to Japan has not been mentioned in connection with mollifying Japanese leaders over US economic espionage.