IT TOOK quite literally a bomb to shift the big powers into concerted action at the United Nations Security Council against a long-defiant, boastfully nuclear-capable North Korea.

• 真有用，一颗核弹就使大国们在联合国安理会采取一致行动反对采取长期对抗态度，傲慢的具有核能力的北朝鲜。