North Korea assembling longest-range missile

North Korea has been assembling its longest-range missile at an east coast launch base and could test-fire the rocket by the end of this month at the earliest, a leading South Korean daily reported on Friday.

South Korean and U.S. officials have warned prickly North Korea not to launch its Taepodong-2 missile, which is supposed to eventually be able to hit Alaska but has never successfully flown.

It blew apart seconds after it was last tested in 2006.

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