A miner attended a protest to block the entrance of the Carbosulcis mine in Carbonia, Italy, Thursday. As many as 100 Sardinian miners armed with explosives have barricaded themselves underground to try to pressure Rome into keeping the mine open. Alessandro Bianchi/Reuters

A miner attended a protest to block the entrance of the Carbosulcis mine in Carbonia, Italy, Thursday. As many as 100 Sardinian miners armed with explosives have barricaded themselves underground to try to pressure Rome into keeping the mine open. Alessandro Bianchi/Reuters