As there has already been a huge amount of utter cobblers talked on this subject notably by the Guardian Newspaper, most of which does not contain a grain of truth, lets just try to put this into perspective.
The biggest issue here is phishing, even though on balance the introduction of IDN will reduce the phishing risk globally, it will still increase it in America where even misinformed opinion carries disproportionate weight.
Russia is simply joining a process that is common to all major Euro-Asian countries. This is not a hidden agenda, just an attempt to ensure Local Web Content is accessible to those that want to access it. Those who don't see the need for IDN and think it will make part of the Web inaccessible to them are not only wrong, but probably would go anywhere near it anyway. If you never put Cyrillics into you Search terms you don't end up with Cyrillic results. If you don't type them in you are not going to be direct navigating, and if you don't understand how to translate the content, you are not going to be able to understand it. The Russians in common with half the World just want that bit of the Internet that is relevant to them to function in a normal manner.
Getting back to the RF issue it is the Americans not the Russians that are primarily exercised over the mixing of Cyrillic and Latin Scripts. The Russian in conjunction with ICANN have sought to avoid problems by only allowing Latin Keywords with the Latin RU extension and to introduce the Cyrillic equivalent of RF uniquely for Cyrillic Keywords. The Russian version of RF contains a Phi like character that cannot be confused with any Latin Script, so it is immediately recognisable as a Cyrillic extension. As it will only be associated with Russian keywords then everyone is protected from phishing, which is more than can be said for the Cyrillics in dot com. So they are actually way ahead of Verisign in taking the moral high ground.
So can we forget all this nonsense and try to only discuss factual matters rather some fictional works by under-worked journalists.