U.S Congress investigates Covid-19 origins

Anthony Fauci is being grilled in the United States Congress, facing unfounded allegations from lawmakers that he attempted to cover up the origins of Covid-19. The 83-year-old US government scientist was Joseph Biden’s chief medical advisor, but before that he served under Donald Trump’s administration at the height of the pandemic, famously correcting many of the former President’s false comments about the deadly virus. Our correspondent Benji Hyer has been following the hearing.