For years, President Donald Trump has voiced his ambitions to expand the US presence in Greenland. But making that happen is easier said than done.

Bloomberg’s Joe Deaux traveled to the remote island this spring, alongside a former Trump administration official who’s hoping to build a rare-earths mine there — with the federal government’s investment.

On today’s Big Take podcast, Joe walks host David Gura through what he saw on the ground, what Greenlanders have to say about Trump’s rhetoric and what it would really take to establish a mines-to-magnets pipeline in Greenland.

Read more: Greenland’s Rare-Earth Dreams Are Luring Trump Allies

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