Just two weeks ago -- a day after the United States offered to hold direct talks with Iran over its nuclear program -- North Korea invited Christopher R. Hill , an assistant secretary of state and chief negotiator on the North 's nuclear weapons program , for direct talks in Pyongyang , the capital .
North Korea
Pyongyang
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North Korea
Pyongyang
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North Korea
Pyongyang
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Pyongyang
North Korea
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Iran
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Christopher R. Hill
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