Tensions rise after China flies warplanes over disputed islands

      |Last week, China declared it would police the skies above a vast new territory that includes a group of uninhabited islands in the East China Sea. China and Japan have been at loggerheads for years over the islands. The dispute has mushroomed into a tense standoff with Japan and its U.S. ally on one side and China on the other. Seth Doane reports.

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