Thousands of striking workers singing and carrying sticks march on a South African mine in Marikana on Sepember 5, 2012, as police were accused of shooting miners in cold blood during a crackdown that killed 34. Armoured police trucks and two police helicopters kept watch as around 3,000 miners arrived at the entrance of a shaft owned by the world's number three platinum producer Lomin where a deadly strike is now in its fourth week. AFP PHOTO / ALEXANDER JOE (Photo credit should read ALEXANDER JOE/AFP/GettyImages)
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AFP ALEXANDER JOE

Police watches striking workers singing and carrying sticks marching on a South African mine in Marikana on Sepember 5, 2012, as police were accused of shooting miners in cold blood during a crackdown that killed 34. Armoured police trucks and two police helicopters kept watch as around 3,000 miners arrived at the entrance of a shaft owned by the world's number three platinum producer Lomin where a deadly strike is now in its fourth week. AFP PHOTO / ALEXANDER JOE (Photo credit should read ALEXANDER JOE/AFP/GettyImages)
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AFP ALEXANDER JOE

A miner carries a photo of a killed miner as thousands of striking workers singing and carrying sticks march on a South African mine in Marikana on Sepember 5, 2012, as police were accused of shooting miners in cold blood during a crackdown that killed 34. Armoured police trucks and two police helicopters kept watch as around 3,000 miners arrived at the entrance of a shaft owned by the world's number three platinum producer Lomin where a deadly strike is now in its fourth week. AFP PHOTO / ALEXANDER JOE (Photo credit should read ALEXANDER JOE/AFP/GettyImages)
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AFP ALEXANDER JOE

Police surround miners killed during clashes between protesting miners and police near a platinum mine in Marikana on August 16, 2012. An illegal strike at a South African platinum mine run by leading global producer Lonmin claimed more lives Thursday as police clashed with miners armed with machetes in the most violent day of the weeklong standoff. Ten people, including two police, had already been killed since workers began their strike on August 10. AFP PHOTO / STRINGER (Photo credit should read -/AFP/Getty Images)
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AFP STRINGER

Police keeps watch at striking workers marching on a South African mine in Marikana Sepember 5, 2012, as police were accused of shooting miners in cold blood during a crackdown that killed 34. Armoured police trucks and two police helicopters kept watch as around 3,000 miners arrived at the entrance of a shaft owned by the world's number three platinum producer Lomin where a deadly strike is now in its fourth week. AFP PHOTO / ALEXANDER JOE (Photo credit should read ALEXANDER JOE/AFP/GettyImages)
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AFP ALEXANDER JOE