Brazil miner Vale knew deadly dam had heightened risk of collapse
By Stephen EisenhammerBELO HORIZONTE, Brazil, Feb 11 (Reuters) - Vale SA , the world's largest iron ore miner, knew last year that the dam in Brazil that...
By Stephen EisenhammerBELO HORIZONTE, Brazil, Feb 11 (Reuters) - Vale SA , the world's largest iron ore miner, knew last year that the dam in Brazil that...