You ain't seen nothing yet

FOR Federal Reserve officials, marking down America's economic outlook has become a depressing routine. A year ago they projected growth of about 4% this year and next. By last month they had chipped those numbers down to 2.8% this year and 3.5% next. “We don't have a precise read on why this slower pace of growth is persisting,” said Ben Bernanke, the chairman. But he ventured that “balance-sheets and deleveraging issues” may be stronger headwinds than expected.