North Korea blew up rocket stage to confound analysts: South Korea

North Korea blew up rocket stage to confound analysts: South Korea The U.S., Japanese and South Korean militaries are scouring the seas for debris and analysts are studying photos, trajectories. Minutes after North Korea launched its rocket, South Korea's navy detected a rain of fragments falling into the sea and then a sooner-than-expected disappearance of the rocket from their radar, suggesting a possible failure.
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