** FILE ** This 1988 file photo provided by Bobby Lee shows Kenneth Bae, right, and Lee together when they were freshmen students at the University of Oregon. Bae, detained for nearly six months in North Korea, has been sentenced to 15 years of "compulsory labor" for unspecified crimes against the state, Pyongyang announced Thursday, May 2, 2013. (AP Photo/The Register-Guard, Bobby Lee, File)
** FILE ** This 1988 photo provided by Bobby Lee shows Kenneth Bae (right) and Mr. Lee together when they were freshmen at the University of Oregon. Bae, detained for nearly six months in North Korea, has been sentenced to 15 years of "compulsory labor" for unspecified crimes against the state, Pyongyang announced on Thursday, May 2, 2013. (AP Photo/The Register-Guard, Bobby Lee)
North Korean leader Kim Jong-un waves in this government-issued photograph.
** FILE ** North Korean leader Kim Jong-un attends an enlarged meeting of the Central Military Commission of the Workers' Party of Korea at an undisclosed location in North Korea on an undetermined date. Mr. Kim issued “important” guidelines on how to bolster the army and protect the nation's sovereignty at the high-level meeting, state media said on Sunday, Feb. 3, 2013, an indication Pyongyang has finalized formal procedural steps and is ready to conduct an atomic test. It conducted the test on Tuesday, Feb. 12, 2013. (AP Photo/Korean Central News Agency via Korea News Service)
** FILE ** In this June 22, 2006, file photo, North Koreans work at a factory of South Korean apparel maker Shinwon company in the inter-Korean industrial park in Kaesong, North Korea. South Korea on Thursday, April 25, 2013, warned of an unspecified "grave measure" if North Korea rejects talks on the jointly run factory park shuttered for nearly a month — setting up the possible end of the last remaining major symbol of inter-Korean cooperation. (AP Photo/Ahn Young-joon, File)
** FILE* ** In this Sept. 21, 2012, photo, North Korean workers assemble Western-style suits at the South Korean-run ShinWon Corp. garment factory inside the Kaesong industrial complex in Kaesong, North Korea. On Wednesday, April 3, 2013, North Korea refused entry to South Koreans trying to cross the Demilitarized Zone to get to their jobs managing factories in the North Korean city of Kaesong. (AP Photo/Jean H. Lee)
** FILE* ** In this Sept. 21, 2012, photo, North Korean workers assemble Western-style suits at the South Korean-run ShinWon Corp. garment factory inside the Kaesong industrial complex in Kaesong, North Korea. On Wednesday, April 3, 2013, North Korea refused entry to South Koreans trying to cross the Demilitarized Zone to get to their jobs managing factories in the North Korean city of Kaesong. (AP Photo/Jean H. Lee)
Eleven-year-old students at the Mangyongdae Revolutionary School, in Pyongyang, North Korea practice taekwondo, April 18, 2013. (AP Photo)
Eleven-year-old students at the Mangyongdae Revolutionary School, in Pyongyang, North Korea practice taekwondo, April 18, 2013. (AP Photo)
