Republican witnesses at House Govt Reform Coronavirus crisis subcommittee hearing: testimony by Steven Quay and Emeritus Professor Muller nail SARS-CoV-2 as having a lab origin. 19 minutes

The arguments by Quay and Muller are profound, yet easily understood, and brief: why this could only have a lab origin and why it was not investigated by virologists who knew better:

https://www.youtube.com/watch?v=YeW5sI-R1Qg&ab_channel=FoxNews