U.S. President Joe Biden recently ordered U.S. intelligence agencies to submit a report on COVID-19's origins in the next three months. But critics say the move has sought to revive the "Wuhan Lab" theory despite no new facts having come to light. Peter Daszak, an expert on disease ecology, and his team have been working with the Wuhan Institute of Virology for the past 15 years. He says there's zero evidence that the virus came out of a lab in the city.