Having a hard time reconciling the title, Countering Radiation Fears With Just the Facts, with this quote:
He believes that even low doses increase the risk of cancer, and that there is no “safe” level or threshold below which the risk does not rise — even if that risk cannot be measured statistically.
If you can’t measure it and objectively establish it as true, how can it be a fact?
Probably by arguing mechanistically, though it would stretch the definition of fact a fair bit. Technically it may actually be correct. Basal metabolism also should increases cancer rate, for instance. It is just a rather useless assertion on its own.