From the September 16, 2020, edition of Fox News' Tucker Carlson Tonight 

TUCKER CARLSON (HOST): Those are her claims. Are they true? We have no way of verifying them. We do know that Dr. Li-Meng Yan is not a quack. She's authored peer-reviewed papers on coronavirus transmission in both Nature magazine and The Lancet. Those are two of the most respected publications in all of science. 

Her paper on the origin of COVID-19, which she has published online, is not frivolous. In it, she points to specific evidence for the claims that she makes. She identifies so-called “cut sites," which are frequently used in genomic engineering, that would allow scientists to swap in sequences from other viruses to create what she described last night as a “Frankenstein bioweapon."

She writes that she has firsthand knowledge that the Chinese military has a template virus with cut sites, designed for that very purpose. 

Once again, we can't verify this, but it's clear that Dr. Li-Meng Yan is a serious person. She is making a very serious claim. 

So, within a few hours of our interview last night, a video of the segment reached 1.3 million people on Facebook. And why wouldn't it? The coronavirus pandemic has touched the life of every American, and justifiably people want to know where it came from. 

But Facebook still doesn't want you to know that.