This photo taken on Nov. 9 and released on Nov. 30 by North Korea's official Korean Central News Agency shows American Merrill Newman inking his thumbprint onto a written apology for his alleged crimes both as a tourist and during his participation in the Korean War. KCNA/AFP/Getty Images hide caption

itoggle caption KCNA/AFP/Getty Images

North Korean soldiers march through Kim Il-Sung square in Pyongyang. Merrill Newman, an American grandfather, has been missing since being removed from a plane about to depart North Korea on Oct. 26. ED JONES/AFP/Getty Images hide caption

itoggle caption ED JONES/AFP/Getty Images

An Aug. 31 image from DigitalGlobe shows the 5-megawatt reactor at North Korea's Yongbyon facility. South Korean officials say they have confirmed that the nuclear reactor has been restarted. DigitalGlobe/ScapeWare3d/via Getty Images hide caption

itoggle caption DigitalGlobe/ScapeWare3d/via Getty Images

South Korean Cho Jang-geum, 81, weeps as she fills out an application to reunite with family members who live in North Korea, at the headquarters of the Korean Red Cross in Seoul Saturday. North Korea announced today that it is indefinitely postponing the reunions of families who were separated by the 1950-53 Korean War. The meetings were to take place in the coming week. Park Dong-ju/AP hide caption

itoggle caption Park Dong-ju/AP

This is a DigitalGlobe image of the 5-megawatt (electric) reactor at North Korea's Yongbyon facility, Aug. 31, with steam seen coming from the electrical power generation building. DigitalGlobe/ScapeWare3d/via Getty Images hide caption

itoggle caption DigitalGlobe/ScapeWare3d/via Getty Images

Former basketball star Dennis Rodman at Beijing Capital International Airport on Tuesday, before his flight to Pyongyang, North Korea. Petar Kujundzic /Reuters /Landov hide caption

itoggle caption Petar Kujundzic /Reuters /Landov

Spanish aristocrat Alejandro Cao de Benos is believed to be the only foreigner working for the North Korean government. He divides his time between North Korea and Europe, where he organizes university conferences on North Korean ideology. He's shown here with a North Korean military officer in Panmunjon, on the border with South Korea. Courtesy of Alejandro Cao de Benos hide caption

itoggle caption Courtesy of Alejandro Cao de Benos