NEW YORK (Reuters) -The U.S. labor market remained mired in its low-hiring, low-firing doldrums through September, though the economy overall "may be on a somewhat firmer trajectory than expected," Federal Reserve Chair Jerome Powell said on Tuesday. He noted that at policymakers will take a "meeting-by-meeting" approach to any further interest rate cuts as they balance job market weakness with the fact that inflation remains well above their 2% target. Powell also said the end of the central bank's long ...