Both the British and the Americans have been explicit that it is the Europeans who are blocking Russia being cut from Swift. Removing Russia would be a sound step, but it is far less important than a western agreement not to buy Russian oil and gas would be. Sadly, though, there is little chance of this happening — too many countries are dependent on Russian gas — which means $700 million a day will continue to flow into Moscow, strengthening the Kremlin’s belief that it can ride out whatever sanctions are imposed on it.