Russian gas continues to flow into Europe after President Vladimir Putin threatened to cut off supplies unless they are paid in roubles, a demand rejected by European leaders as a breach of contract. However, Putin's decree does include a mechanism under which foreign buyers would set up special accounts at Gazprombank, which would convert foreign currency payments into roubles on their behalf. Plus, workers at an Amazon warehouse in New York could be heading for a landmark victory for organised labour following a vote on whether to unionise.