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Russia Is Trying to Leave the Internet and Build Its Own
(www.scientificamerican.com)
This is a most excellent place for technology news and articles.
Large intranets are not a problem (that's how it was in the beginning in many places, rather fast and unlimited access to LAN resources, chats etc, but slow and expensive to the Internet), it's just that nothing inside Russia is going to be self-sufficient.
Also every dick without balls in a chair will try to get some control or share or get a bribe or just prevent this from happening so that his relative or something would get the contract.
This wasn't a factor with the large Internet being accessible (unbeatable competition), but will be with intranets (or a countrywide intranet). Nothing will get built. In the 90s such dicks simply didn't understand that this is a good business, so they allowed it to grow (still all the major telecom providers that survived had some connections with FSB etc, or so people say).
Also true if you consider the absolutely massive cost and effort it took China to get where they are with their Great Firewall. From what can be gleaned they also have a huge workforce of people monitoring communications as well in order to keep their internet safe for the state and "sanitized".