The government’s hunt for a pandemic ‘lab leak’ went down many paths and came up with no smoking gun - The Washington Post

… "An expert trying to design an even more effective coronavirus would never have come up with this design," Collins said, noting that the virus's features were so unusual that a human could not have possibly imagined them...

https://www.washingtonpost.com/national-security/us-intelligence-wuhan-lab-coronavirus-origin/2021/06/15/2fc2425e-ca24-11eb-afd0-9726f7ec0ba6_story.html