The U.S. is approaching 300,000 COVID-19 deaths as cases continue to spike nationwide. More than 15.7 million cases have been confirmed, resulting in a new wave of lockdowns and restrictions. But there's positive news on the vaccine front, following an FDA panel's recommendation to authorize emergency use of Pfizer's vaccine. Final approval from the agency is the final step before millions of doses can be shipped and distributed to hospitals and drug stores. "Face the Nation" moderator Margaret Brennan joined CBSN's Lana Zak to discuss.