I suspect they mean the only person with any kind of "scientific" presentation, and everything after that has been a game of telephone amongst the anti-vax crowd.

I really appreciate all the answers here so far. But I wanted to thank you for that resource specifically. Maybe my googling isn't so great either, but I haven't come across that before. Much obliged.

That actually was a kind of scam:

https://www.businessinsider.com/...

Just seconding Plainly Difficult, and Mentour Pilot. Also, I think Kyle Hill's series on nuclear "disasters" is pretty good. It's called "Half-life Histories."

Yep!