Why is the 'lab leak' theory back in the news now?
Why is the 'lab leak' theory back in the news now?

Brian Stelter asks David Leonhardt about the newfound fervor around the Covid-19 “lab leak” theory.

“A lot of people in the media made this mistake,” Leonhardt says, “they said ‘Wow, if Tom Cotton is saying something, it can’t be true,’ or they assumed that, and that’s not right.”