Troy Stangarone of the Washington-based Korean Economic Institute said if the journal report is true, it underscores the growing difficulty of reaching any kind of denuclearization agreement with North Korea. _____________________________________________________________________________________ Earlier this month the head of U.S. Northern Command Admiral William Gortney warned that Pyongyang is now capable of launching a nuclear armed missile that can reach the United States, but he said he has no indication it has been tested. Victor Beattie, VOA news, Washington. 总部设在华盛顿的韩国经济研究所的特洛伊.斯坦加罗内称如果<华尔街日报>的报道属实,那么与朝鲜达成任何无核化的协议将会举步维艰. _________________________________________________________________ 本月初,美国北方司令部司令官威廉姆.哥特尼发出警告,他说平壤目前有能力发射可以打到美国的核导弹.但是他说,他没有看到朝鲜进行了这方面的试验.美国之音,维克多贝蒂于华盛顿报道.