Counterintelligence picked this up from an enemy agent.

That is why the Diet is also considering a bill on the protection of classified information that would impose harsher punishment on government officials who leak secrets, particularly those concerning national security. The trauma of gag laws that were imposed on the press before and during World War II resulted in the elimination of all restraints afterwards, which had the effect of making Japan a spy s paradise, with insufficient counterintelligence measures and poor secrecy.