Fed trades 'remarkably positive' for 'no precedents' after volatile year

WASHINGTON (Reuters) - A year ago, U.S. Federal Reserve Chair Jerome Powell held a "remarkably positive outlook" for an economy enjoying a "historically rare" combination of good news including low unemployment, steady inflation and strong growth that were all expected to continue.When the Fed meets this week, the discussion will be about just how badly that outlook has eroded, and whether officials should still describe themselves as simply tinkering with policies that are about right, or..