It took just a little over an hour for Vladimir Putin to respond to the latest, most provocative and toughest round of US sanctions yet. The response, appropriately enough, came just after the BRICS summit in Brazil, where the world's developing countries yesterday announced the formation of both a BRIC bank and a $100 billion currency reserve to provide a liquidity alternative to the insolvent developed world's central banks. Here Vladimir Putin was asked to comment on the new package of sanctions against Russia announced just minutes earlier by Obama.