Source article <http://the-japan-news.com/news/article/0001656054>

“Imura’s actions were “vicious” because he made it easy to imitate his
production method, presiding Judge Koji Inaba said, noting that Imura had
released 3-D design data for his guns on the Internet.”

They can imprison the man, but they cannot imprison the data. Can’t stop
the signal.
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