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PBS News Hour
Could a NATO build-up in Europe reignite the Cold War?
NATO is undertaking its largest build-up in Eastern Europe since the Cold War, in order to counter recent Russian expansionism. Meanwhile, Defense Secretary Ash Carter has proposed quadrupling U.S. spending on boosting its military might in Europe. But is it necessary -- or wise -- to send such a signal to a resurgent Russia? Chief foreign affairs correspondent Margaret Warner reports.
