In an Anime Addventure episode I read recently, it was suggested that the major ninja villages restricted some technologies in their territories. In areas
where ninjas aren't as predominant (like Wave) these technologies are more common.
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"I've always wanted to be somebody, but I should have been more specific." - George Carlin
where ninjas aren't as predominant (like Wave) these technologies are more common.
___________________________
"I've always wanted to be somebody, but I should have been more specific." - George Carlin