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Linus Torvalds affirms expulsion of Russian maintainers
(www.theregister.com)
This is a most excellent place for technology news and articles.
Don't know the whole story but :
If you banned them because they are promoting the Russia, it's okay. But it's not if you banned them ONLY because they're Russians. But maybe you could like said to them to do like in the sports, and operate as a "no-country" people, but surely not ban them for their nationality