Well, he MUSt be off to his Pub thingy and to answer my question will take time and research to actually GET THE FACTS...that takes actual work...
G
these didn't trip my "field specialist" detector.
this, otoh, did:
...particulate air monitoring in the area and have the statistical timeweighted 8h/day maxima for personal exposure with and without safety gear.
I suspect Perlstein's alarm went off, too. I disagree with him, but I don't think he's an idiot.