For years, two billionaire investors battled over the fate of Herbalife, a nutritional shake company. This month, we saw the final chapter of the strange saga that WSJ's David Benoit likens to "Mean Girls meets Wall Street."

Reporter Peter Grant has been walking one stretch of Brooklyn since the beginning of the pandemic, talking to struggling business owners. Recently, he's found a new phenomenon: people who've decided now is the right time to open a new business.

A new strain of coronavirus that arose in the U.K. could become dominant in the U.S. by March. WSJ's Daniela Hernandez explains the science behind the emerging threat.