News Wrap: FDA panel backs Moderna's COVID-19 vaccine

In our news wrap Thursday, a second COVID-19 vaccine moves closer to emergency authorization, President-elect Biden rounds out his environmental team, Vladimir Putin denies ordering opposition leader's poisoning, more than 340 boys kidnapped in Nigeria are freed, the family that owns Purdue Pharma admits Oxycontin has helped fuel opioid addictions, and Google faces another major antitrust lawsuit.