Washington

On Wednesday at 2:15 p.m., Ben Bernanke will do something that previous Federal Reserve chairmen considered a terrible idea. He will hold a news conference.

Mr. Bernanke spent much of his academic career arguing that the Fed should be less opaque, and, as chairman, he has put his ideas into action. Now it’s time for those of us in the media to hold up our end of bargain. In the spirit of democratic accountability, we should ask hard questions — and we shouldn’t let him get away with the evasions and half-answers that members of Congress too often allow Fed chairmen during their appearances on Capitol Hill.

One question more than any than other is crying out for an answer: Why has Mr. Bernanke decided to accept widespread unemployment for years on end, even though he believes he has the power to reduce it?

The Fed’s own forecasts suggest that the unemployment rate won’t fall below 5 percent for perhaps another five or six years. Mr. Bernanke believes the Fed “retains considerable power” to reduce unemployment faster, despite the fact that its benchmark interest rate is zero, as he’s said before. Yet he has been hesitant to use that power.