Capitol police, citing the increased threats against them in recent weeks. Turning now to the battle against covid19. As the white house gears up for a mass vaccination of americans, the World Health Organization has a team in wuhan, china, investigating the origins of the virus. The team was released from quarantine just yesterday. Our Ramy Inocencio was in wuhan during the initial outbreak last year and is back covering the investigation. Reporter finally free in wuhan to find covids origin. 13 experts from the World Health Organization liberated after 14 days in quarantine. They tweeted photos of their departure. New yorkbased epidemiologisted release, focus. What contacts they had, what behaviors they had, and does that lead us into different geography or different behavior. So its unclear if china is the real source, the original source of the virus. Reporter that will probably frustrate the many people around the world who believe covid did come from china. The Seafood Market tho