"Heinous devils." "Narrow-minded guys of an island nation." "Island barbarians, the sworn enemy of the Korean nation." "A matchless political dwarf." "A burglar that historically inflicted wars and misfortune and pain of colonial rule upon Korea."

As evidenced by its harsh characterizations of Japan, North Korea's state-run news wire spews vitriol like none other. But the Korean Central News Agency has recently taken a conspicuously muted approach to the United States, and to a lesser extent South Korea, as negotiations over Pyongyang's nuclear and missile programs continue.

Now, it has turned its sights on a new, but predictable foil — its former colonial master, Japan.