How did covid-19 begin?

[George K]

Remember when everyone laughed at Sen. Tom Cotton for asking (not suggesting) whether the coronavirus began in a lab?

"Tin foil hat conspiracy-monger"

Last week, Tucker Carlson broadcast this:

Link to video

And now, the Washington Post is asking questions as well

https://www.washingtonpost.com/opinions/global-opinions/how-did-covid-19-begin-its-initial-origin-story-is-shaky/2020/04/02/1475d488-7521-11ea-87da-77a8136c1a6d_story.html

U.S. intelligence officials don’t think the pandemic was caused by deliberate wrongdoing. The outbreak that has now swept the world instead began with a simpler story, albeit one with tragic consequences: The prime suspect is “natural” transmission from bats to humans, perhaps through unsanitary markets. But scientists don’t rule out that an accident at a research laboratory in Wuhan might have spread a deadly bat virus that had been collected for scientific study.
...
There’s a competing theory — of an accidental lab release of bat coronavirus — that scientists have been puzzling about for weeks. Less than 300 yards from the seafood market is the Wuhan branch of the Chinese Center for Disease Control and Prevention. Researchers from that facility and the nearby Wuhan Institute of Virology have posted articles about collecting bat coronaviruses from around China, for study to prevent future illness. Did one of those samples leak, or was hazardous waste deposited in a place where it could spread?

Richard Ebright, a Rutgers microbiologist and biosafety expert, told me in an email that “the first human infection could have occurred as a natural accident,” with the virus passing from bat to human, possibly through another animal. But Ebright cautioned that it “also could have occurred as a laboratory accident, with, for example, an accidental infection of a laboratory worker.” He noted that bat coronaviruses were studied in Wuhan at Biosafety Level 2, “which provides only minimal protection,” compared with the top BSL-4.

Ebright described a December video from the Wuhan CDC that shows staffers “collecting bat coronaviruses with inadequate [personal protective equipment] and unsafe operational practices.” Separately, I reviewed two Chinese articles, from 2017 and 2019, describing the heroics of Wuhan CDC researcher Tian Junhua, who while capturing bats in a cave “forgot to take protective measures” so that “bat urine dripped from the top of his head like raindrops.”

And then there’s the Chinese study that was curiously withdrawn. In February, a site called ResearchGate published a brief article by Botao Xiao and Lei Xiao from Guangzhou’s South China University of Technology. “In addition to origins of natural recombination and intermediate host, the killer coronavirus probably originated from a laboratory in Wuhan. Safety level may need to be reinforced in high risk biohazardous laboratories,” the article concluded. Botao Xiao told the Wall Street Journal in February that he had withdrawn the paper because it “was not supported by direct proofs.”