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An excellent analysis of the Vale (VALE) Brumadinho tailings dam collapse

Tom Szabo has awoken his infrequent blog to write highly recommended piece on the events surrounding the Brumadinho tailings dam collapse. Part armchair sleuthing, part careful analysis of available videos, part expert eye and chain of logic, the piece is several grades higher than anything I've read on the disaster. It also goes a long way to backing up a couple of my initial gut reactions, those of "they didn't stand a chance" and "Vale executives should be jailed for this".