A Japanese journalist is trying once again to clear his name concerning an alleged government cover-up he attempted to reveal over 30 years ago, and the subsequent scandals that discredited him. Recent declassified U.S. government documents seem to support what Takichi Nishiyama has been saying for years, and now raise the question of what exactly is being covered up. There is speculation that the United States agreed to return Okinawa to Japan only after securing the right to store nuclear weapons in the island prefecture. Asahi.com has the story.