"1942 ''Chicago Tribune'' incident" . "\\\"Blue\\\" book fleet code" . "Red Book Japanese naval cipher" . . "their naval code" . "Japanese naval codes#Coral" . "Japanese" . "Japan's naval codes" . "series of stories" . "Blue Book Japanese naval cipher" . "Japanese naval codes" . "Japanese Navy codes and cyphers" . "Japanese Naval Cipher JN-25D" . "June front-page story" . "JN-25" . "story in the ''Tribune''" . "story for the ''Chicago Tribune''" . . "the Japanese code" . . "Red naval code" . "Merchant-shipping codes: JN-39 (Maru code)/JN-40/JN-152/JN-167" . "Japanese naval codes" . "JN 25B" . . . "Japanese naval messages" . "Japanese naval codes#JN-39" . . "naval code JN-25" . "Japanese naval codes#JN-25" . "Japanese Navy manual code" . . . . "\\\"''maru'' code\\\"" .