As the U.S. COVID-19 death toll topped 291,000, a panel of outside advisers to the Food and Drug Administration late Thursday endorsed the emergency use of a Pfizer vaccine to save lives for those who are 16 and older. It's highly anticipated FDA approval would mean the biggest vaccination campaign could get underway in a matter of days. Amna Nawaz reports. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: / newshour Instagram: / newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe