Lab leak theory gains traction in COVID origins investigation.

Former Director of National Intelligence John Ratcliffe is expected to testify before the House Select Subcommittee on the Coronavirus Pandemic that a lab leak from a Chinese Communist Party-controlled lab is the "only explanation" for the COVID-19 global pandemic, citing U.S. intelligence and "numerous, diverse and unassailable" sources for the information. Ratcliffe will also criticize the Biden administration for not facing the "enormous geopolitical implications" of such an assessment. The intelligence community's sources for the information are "unassailable," according to Ratcliffe, who will also detail the challenges he and other Trump administration officials encountered in investigating the origins of COVID-19.