If you want to learn about a slightly earlier Canadian equivalent, look up Port Hope, Port Radium, and Eldorado Resources. They mined and refined a large portion of the Uranium for the Manhattan project. The people involved had no clue how to handle things safely and Port Hope is still remediating the contamination that resulted.
Lockheed and Union carbide already had very poor track records in this regard.
Full version of the longread over at The Atavist Magazine, titled "Toxic Lies": https://magazine.atavist.com/2026/toxic-lies-radiation-paduc...
Earlier submission (4 points, 0 comments): https://news.ycombinator.com/item?id=49149056