Striking mine workers

Striking mine workers

Dean Hutton/Bloomberg

Striking members of the Association of Mineworkers and Construction Union attend a union meeting outside Lonmin Plc's Wonderkop platinum processing plant in Marikana, South Africa, on Feb. 13, 2014. More than 70,000 workers have walked off the job at mines owned by Anglo American Platinum Ltd., Impala Platinum Holdings Ltd. and Lonmin Plc since Jan. 23.