While we know plenty about the push for America to re-join the calendar and their return for 2012, it seems momentum is gathering in that other Cold War superpower - Russia - for a race to be established. Jenson Button and Vitaly Petrov were in Moscow doing a PR event over the weekend, and it seems that there is enough interest for a bid to bring the Russian Federation to the calendar. Story Now, granted, this could be just the usual PR spin. But something makes me think otherwise: the Russian demonstration event has been going for a few years and Bernie Ecclestone has said a Russian Grand Prix is his priority right now. Although he seems to be interested in Sochi as a venue, this sounds like a pretty serious bid since Hermann Tilke has apparently already been called in and Russian news services have already run a proposed layout which apparently looks like this. Russia has always been The One That Got Away from Bernie; he tried to get it going as early as 1982 becaus he wanted Formula 1 behind the Iron Curtain. When that didn't pan out, we got the Hungarian Grand Prix. And he's tried at least twice (once at Nagatino Island, once in St. Petersburg) to get the race up and running. But right now he really seems to be pushing for it. More to the point, what's with the sudden expansion in the calendar? Between Abu Dhabi, South Korea, India, America and now potentially Moscow, Rome and South Africa, we're looking at seven new races in as little five years. The last mass expansion to the calendar was in 2004 when two races - Bahrain and Shanghai - were added. What's going on?