China has realised it has limited time to rein in North Korea’s nuclear programme through negotiations and is open to further sanctions against Pyongyang, a senior U.S. State Department official said on Friday.
http://uk.reuters.com/article/uk-usa-southchinasea-china-idUKKBN18M04X
Can North Korea's elites oust Kim Jong Un?
A coup in Pyongyang would be a welcome solution to problems posed by the reclusive and pugnacious regime in North Korea. But convincing the dictator's closest allies to turn against him will be tough, say experts.
http://www.dw.com/en/can-north-koreas-elites-oust-kim-jong-un/a-39091374