President Trump says he wants the U.S. to take "ownership" of Greenland. One proposal is to buy it in a "sovereignty purchase," which has shaped the U.S. That's more complicated now than it once was.President Trump says he wants the U.S. to take "ownership" of Greenland. One proposal is to buy it in a "sovereignty purchase," which has shaped the U.S. That's more complicated now than it once was.
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