a's refusal to use its leverage as North Korea's friend and protector to halt its provocations strengthens the United States alliance system that Beijing considers a tool of encirclement. As Pyongyang blithely continues with missile launches and other acts that undermine China in the international arena, it seems hard to image a policy more damaging to Chinese national interests. - Ralph A Cossa and Brad Glosserman (May 18, '12)Read Full Article »