It was far from the equivalent of Mario Draghi's muscular "whatever it takes" comment in 2012, when the European Central Bank president famously outlined his resolve to save the euro. Yesterday's comments from Federal Reserve Chair Jerome Powell were considerably more nuanced, in part because the US economy is in far better shape than the euro area, either in 2012 or today. Yet, Powell's remarks still serve as a reminder that US growth has slowed and so the Federal Reserve is focused on extending the expansion, which is set to become the longest on record