BHP Billiton hits seven-year low in wake of Brazil disaster

[caption id="attachment_838111" align="aligncenter" width="600"] Screenshot from Fábio Félix Domingues’ video via You Tube.[/caption] Shares in BHP Billiton (ASX:BHP) fell sharply on Sydney Monday, touching a seven-year low, as the mining giant took an additional hit from the tailings dam disaster...