president biden the power to ban tiktok overfears president biden the power to ban tiktok over fears it is a potential security risk. and thinking out loud. the singer ed sheeran opens up about using music to cope with depression. live from our studio in singapore, this is bbc news. it s newsday. hello, and welcome to the programme. the head of the fbi has claimed it is most likely that covid i9 originated from a leak from the chinese government controlled lab in wuhan. china has accused the fbi politicising the investigation into the origins of coronavirus and says there has been no new scientific evidence to support the theory. other us agencies believe the virus developed naturally. 0ur north america correspondent john sudworth has more. suspicions have long swirled around wuhan s laboratories. now three years after the start of the pandemic, they have burst out into the open once again. the fbi has for quite some time now assessed that the origins of the pandemic are most