One is related to the readiness of the two major nuclear powers, Russia and the United States, to move from the stockpile reductions to which they agreed in the New START treaty to complete elimination of their nuclear arsenals. Others concern smaller nuclear powers’ willingness to go along, and whether reliable inspection, verification, and enforcement systems can be put in place.
马德里—自2008年12月发布以来，《全球零核》（Global Zero）——没有核武器的世界愿景——便面临着一些可怕的挑战。其一与两个主要核大国——俄罗斯和美国——是否准备好了从旅行它们所签署的新战略核武器削减条约（New START）削减库存承诺迈向完全消除它们的核武库。也有人担心较小的有核国家是否愿意仿效美俄，是否能实施可靠的检查、核实和强制制度。