Good point about the Japanese culture differences. One of my favorite TV shows is "Iron Chef", and the stuff they like to eat really blows my mind.

Anouther bit of information I remember seeing someplace is there were problems of sabotage on nuclear subs. Not from enemy agents but from crewmen who had problems at home that did not get taken care of and their thought process is to break something so the sub will have to return to port and let them off the boat for awhile longer. Six months underwater with problems at home would really work on a person's mind.

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