Armed South Korean soldiers cross a bridge on a truck in the border town of Paju, South Korea, on Sunday, as negotiators from the South and North Korea resumed talks. EPA/Landov hide caption

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An undated composite photograph showing the delegates at the Panmunjom talks on Saturday. (Left to right) South Korean National Security Adviser Kim Kwan-jin, South Korean Unification Minister Hong Yong-pyo, Hwang Pyong-so, the North Korean military's top political officer and Kim Yang-gon, the top North Korean official in charge of inter-Korean affairs. EPA/Landov hide caption

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Visitors look at a miniature map of the Korean Peninsula at the Odusan observatory in Paju, Gyeonggi-do, South Korea, on Friday. North Korea is set to push back its clocks by half an hour to mark the end of Japanese occupation after World War II. Jeon Heon-Kyun/EPA/Landov hide caption

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A farmer stands near a field in South Hwanghae, North Korea. Wong Maye-E/AP hide caption

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Gloria Steinem and South Korean peace activists march along a military fence at a checkpoint after crossing the border separating North and South Korea. Jung Yeon-Je/AFP/Getty Images hide caption

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South Korean Foreign Minister Yun Byung-se and U.S. Secretary of State John Kerry hold a joint news conference following meetings at the Ministry of Foreign Affairs in Seoul. Saul Loeb/AFP/Getty Images hide caption

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A man watches a television showing news coverage of the reported execution of North Korea's defense minister, Hyon Yong Chol, at a railway station in Seoul on Wednesday. Ed Jones/AFP/Getty Images hide caption

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An image obtained by Yonhap News Agency showing North Korean leader Kim Jong Un pointing at a ballistic missile believed to have been launched from underwater near Sinpo, on the northeast coast of North Korea, on Saturday. KCNA/EPA/Landov hide caption

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North Korean defector Shin Dong-hyuk came to prominence in a 2012 book about his life in a North Korean prisoner camp. He now says some key parts of his story were not true. His case highlights the difficulty in confirming information in a closed society like North Korea. Chip Somodevilla/Getty Images hide caption

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Amid much speculation by private security analysts, the FBI stood by its claim this week that North Korea was responsible for the hack against Sony Pictures. Damian Dovarganes/AP hide caption

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