This reminds me of an issue that came up when I was working with a intelligence agency, training machine translation. If you think about language in general, i

This reminds me of an issue that came up when I was working with a intelligence agency, training machine translation. If you think about language in general, individual words aren't very sensitive. The word for bomb in any language is public knowledge. But when you start getting to jargony phrases, some might be unique to an organization. And if you're training your MT on translated documents surreptitiously intercepted from West Nordistan's nuclear program, and make your MT model public, the West Nordistanis might notice - "hey, this accurately translates our non-public documents that contain rather novel phrases ... I think someone's been listening to us!"