In the bestselling new book "The Hundred-Year Marathon," author and former Pentagon official Michael Pillsbury argues that China is angling to replace the United States as a global superpower. Chief foreign affairs correspondent Margaret Warner interviews Pillsbury about what he thinks the U.S. can do to counteract the “secret strategy.”

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Alaskan Governor Mike Dunleavy delivers remarks at Joint Base Elmendorf-Richardson in Anchorage, Alaska, on September 11, 2023. (Getty Images)