Depends entirely on what you want to do. If Russia wanted to hit a missile silo in Nebraska with a [supersonic] cruise missile they'd need to sneak an Oscar up

Depends entirely on what you want to do. If Russia wanted to hit a missile silo in Nebraska with a [supersonic] cruise missile they'd need to sneak an Oscar up the Mississippi (which is implausible if not impossible.) Granits have less than a thousand kilometers range, so realistically the only way Russia could strike at the middle of America is with ballistic missiles. ABM tech calls even that into question, hence their recent 'superweapon' projects like Skyfall and Poseidon.