FILE - In this Oct. 10, 2010 file photo, the late North Korean leader Kim Jong Il, right, and his son Kim Jong Un attend a massive military parade to mark the 65th anniversary of the communist nation's ruling Workers' Party in Pyongyang, North Korea. When Kim Jong Un took the helm of North Korea in late 2011, speculation swirled around the young leader. What would he do for an economically backward authoritarian nation in a high-stakes nuclear standoff with its neighbors and Washington? Almost six years later, his rule has actually seen the economy improve, and when it comes to the nuclear drive, it's obvious that Kim Jong Un, who rattled nerves last week by test-firing his country's first intercontinental ballistic missile, has a more uncompromising stance than his late father, Kim Jong Il. (AP Photo/Vincent Yu, File)