North Korea is expected to underscore its commitment to the six-party deal on Friday by demolishing, with explosive charges, the massive cooling tower of the Yongbyon reactor.

• 北韩预计会以星期五的拆除行动强调其在六方会谈协议上的承诺。北韩计划用炸药炸毁宁边核反应堆的巨大的冷却塔。