Small doses ARE bad for you.
>
formatting link
don't shout - especially when what you are shouting is untrue.
As someone who has forgotten most of his undergraduate physics learnt in part from a former member of the Manhattan Project I'll risk the comment that (i) the Bulletin of the Atomic Scientists seems to me just possibly a wee bit "partis pris" and (ii) the author doesn't say what you said he said. You only have to read the last sentence in the abstract"
"Though current consensus supports a linear no-threshold model, evidence suggests that these biological responses just may overturn that thinking."
Please not "suggests" + "just may" does not equal "99.99% confidence" (the minimum IMHO at which you can run naked from your bath shouting Eureka!)