How president-elect Joe Biden has tapped Janet Yellen to be the first female treasury secretary. And the mall Santas making it work. Read more:Economist Janet L. Yellen has had many jobs, even in the White House. Now, she’s going to be the secretary of the Treasury Department — if confirmed — in Biden’s Cabinet. Economics correspondent Heather Long explains the significance of her nomination.And, this year, Santa performers are braving the pandemic with plexiglass, sanitation elves and snow globe bubbles.Subscribe to The Washington Post: https://postreports.com/offer