Notably - in the 1950s, the USGS published guides on where to mine asbestos in the US [1]. This map is the precise geo coordinates that the USGS included for the Ludlow site and then the site of the Vermont J&J talc mine... literally 2 miles between the two. So again, consider my credulity strained that the only found contamination a handful of times decades ago mining talc directly next to known asbestos deposits.
https://www.google.com/maps/dir/43.383623,-72.647868/Argonau...
[1] Page 7 in Windsor County: https://web.archive.org/web/20200319042340id_/https://pubs.u...
Yes it is possible that J&J was careless, and the the product was tainted, and these plaintiffs were exposed, and their cancer was caused by that exposure but the evidence is VERY thin.