Matthew Miller leaves after his trial at North Korea's Supreme Court on Sunday. The court sentenced the U.S. citizen to six years of hard labor for entering the country illegally and trying to commit espionage. Kim Kwang Hyon/AP hide caption

itoggle caption Kim Kwang Hyon/AP

Kenneth Bae, an American tour guide and missionary serving a 15-year sentence in North Korea, speaks to The Associated Press on Monday. Bae and two other detained Americans urged the U.S. to send a high-level emissary to secure their release. Wong Maye-E/AP hide caption

itoggle caption Wong Maye-E/AP

Pope Francis shakes hands with upon his Thursdayarrival in Seoul. The Pontiff arrived in South Korea on the first papal visit to the Asian nation in a quarter century. During his five-day visit, Francis plans to beatify 124 Korean martyrs and encourage a vibrant and growing local church seen as a model for the future of Catholicism. Gregorio Borgia/AP hide caption

itoggle caption Gregorio Borgia/AP

Chinese President Xi Jinping (right) and South Korean President Park Geun-hye greet children waving the two countries' national flags at the presidential Blue House in Seoul on Thursday. Xi has yet to visit North Korea. Kim Hong-ji/Reuters/Landov hide caption

itoggle caption Kim Hong-ji/Reuters/Landov

A propaganda painting is seen outside the People's Palace of Culture in Pyongyang, North Korea, in 2011. North Korean state media reported Friday that the nation has detained a U.S. tourist. Feng Li/Getty Images hide caption

itoggle caption Feng Li/Getty Images

North Korea apparently doesn't like either of them: President Obama and South Korean President Park Geun-hye at a news conference in Seoul, South Korea, on Friday. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP