North Korea has issued fresh threats against South Korea, vowing retaliation for recent protests in Seoul that it says "hurt the dignity" of the leadership in Pyongyang.
North Korea Vows Retaliation for Anti-Pyongyang Protests in Seoul
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South Korean protesters wearing envelopes participate in a rally to mark Global Day of Action on Military Spending near the U.S. embassy in Seoul, April 15, 2013.
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Visitors use binoculars to watch North Korean territory at the unification observation post near the border village of Panmunjom, in Paju, north of Seoul, April 15, 2013.