Japanese journalist buys a vintage map of Tokyo, and notices inconsistencies
between the locations of subway lines. Digging a little deeper, he comes to
the conclusion that there is
a secret network of tunnels beneath Tokyo, dating back decades, whose existence is still being actively covered up by governmental authorities. So he publishes a book about this, only to find himself virtually blacklisted by the media. Is Shun Akiba a paranoid crackpot of some sort (like the ones you hear complaining that the establishment is "suppressing" their revolutionary new theory of physics), or is there really a conspiracy of silence about the tunnels under Tokyo? (I recall that Japan doesn't have a strong tradition of transparency in government.)
He started self-censoring once he uncovered a sign that said:
---------------- Do Not Feed The Gojira ----------------