Kim Jong Un has continued a family tradition of brinkmanship, bad faith negotiating, and rapid changes in policy by sending his sister to the Olympics, and having her last month ask the South Korean President for an inter-Korean summit.

Donald Trump and his administration continue to send mixed signals about the possibility of talks with the North and the threat of military action (and even war), while doing what no other prior administration has managed: convincing China to seriously implement a raft of tough sanctions against the North.