Through brinkmanship, says Mr Ren, North Korea is reminding America of its existence and, it thinks, putting pressure on it to change its supposedly hostile policy.

• 通过这种冒险手段，任先生认为，北韩正在向美国提醒自己的存在，而且，它还认为，此举可以为改变其臆想中的敌对政策施加压力。