Second, as we have seen in the case of North Korea, there is nothing to stop countries that sign the Treaty from simply walking out after declaring that “extraordinary events” have jeopardized their supreme interests.
问题之二在于，正如我们在朝鲜案例中所看到的那样，没有能阻止住条约签字国在宣布“非常事件”已对其至高利益构成威胁后、从不扩散体制中一走了之的办法。