Olympus isn't the only story that has been or is being ignored or squashed by powerful forces in Japan. Here are three more gems from that rich vein.

In 1971, Takichi Nishiyama reported for the Mainichi Shimbun newspaper that Tokyo had agreed to secretly absorb substantial costs of the reversion of Okinawa from U.S. to Japanese rule in 1972, including $4 million to restore farmland that was requisitioned for bases.

Nishiyama's remarkable journalistic scoop created a sensation but resulted in his public and professional humiliation.