In the past week, mixed progress as a US journalist is charged with spying amidst positive statements from both countries.
As attacks continue, experts consider whether deadly force would be an effective deterrent.
Military options could only make things worse, some analysts say, if they did not go hand in hand with political solutions.
The 'dear leader' appeared before the Supreme People's Assembly Thursday, which rubber-stamped his election to a third term.
Out of 800,000 deaths emerged a new system of justice and more peacekeepers. But will either prove effective or enduring?
Their assertion boosts US view that Pyongyang used Sunday’s launch to develop long-range missile technology, not to explore space.
Security Council's struggle to respond to Sunday's rocket launch also portends challenges for Obama's nonproliferation goals with Iran.
N. Korea's missile launch Sunday complicates the long-term strategy of the US and her Asian allies toward Pyongyang's nuclear program.