Most of the world’s cobalt is extracted in the Democratic Republic of Congo. But to get it, hundreds of thousands of Congolese people labor with no other means to survive. On episode three of On Point’s special series -- cobalt and the human cost of mining.

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On Point is WBUR’s award-winning, daily public radio show and podcast. Every weekday, host Meghna Chakrabarti leads provocative conversations that help make sense of the world.