The United States will continue to do our part -- securing our own material and helping others protect theirs. We’re moving forward with Russia to eliminate enough plutonium for about 17,000 nuclear weapons and turn it instead into electricity. I can announce today a new agreement by the United States and several European partners toward sustaining the supply of medical isotopes that are used to treat cancer and heart disease without the use of highly enriched uranium. And we will work with industry and hospitals and research centers in the United States and around the world, to recover thousands of unneeded radiological materials so that they can never do us harm.
美国将继续尽我们的职责——保护我们自己的核材料，也帮助他人保护他们的核材料。我们正在与俄罗斯一起努力，销毁足以制造约17,000件核武器的钚，使其转换为电能。我今天可以宣布，美国和几个欧洲合作伙伴已达成的新协议，保障治疗癌症和心脏病的医用同位素的供应，不再使用高浓缩铀。我们将与美国和全世界有关行业、医院和研究中心共同努力，回收数千项不需要的放射性材料，使它们不能危害我们。
Now, American leadership has been essential to progress in a second area -- taking concrete steps towards a world without nuclear weapons. As a party to the Nuclear Nonproliferation Treaty, this is our obligation, and it’s one that I take very seriously. But I believe the United States has a unique responsibility to act -- indeed, we have a moral obligation. I say this as President of the only nation ever to use nuclear weapons. I say it as a Commander-in-Chief who knows that our nuclear codes are never far from my side. Most of all, I say it as a father, who wants my two young daughters to grow up in a world where everything they know and love can’t be instantly wiped out.
美国的领导地位对于在第二个领域取得进步是必不可少的——采取具体措施实现无核武器的世界。作为《不扩散核武器条约》(Nuclear Nonproliferation Treaty)的缔约国，这是我们的义务，是一个我非常认真地对待的义务。我相信美国有独特的责任采取行动——事实上，我们有道德的义务。我这样说，作为有史以来唯一使用过核武器的国家的总统。我这样说，作为一名总司令，我知道我们的核武器密码从来没有远离过我的身旁。最重要的是，我这样说，也作为一位父亲，他希望自己两个年幼的女儿，能够在一个她们所熟悉和喜爱的一切都不会被立即化为乌有的世界上成长。
Over the past three years, we’ve made important progress. With Russia, we’re now reducing our arsenal under the New START Treaty -- the most comprehensive arms control agreement in nearly 20 years. And when we’re done, we will have cut American and Russian deployed nuclear warheads to their lowest levels since the 1950s.
过去三年以来，我们取得了重要进展。我们与俄罗斯基于《削减战略武器新条约》((New START Treaty)——这是近20 来最为全面的军备控制协议——正在削减我们的核武库。在完成这一轮削减后，美国和俄罗斯将把核弹头部署数量减少到自上世纪50年代以来的最低水平。
As President, I changed our nuclear posture to reduce the number and role of nuclear weapons in our national security strategy. I made it clear that the United States will not develop new nuclear warheads. And we will not pursue new military missions for nuclear weapons. We’ve narrowed the range of contingencies under which we would ever use or threaten to use nuclear weapons. At the same time, I’ve made it clear that so long as nuclear weapons exist, we’ll work with our Congress to maintain a safe, secure and effective arsenal that guarantees the defense not only of the United States but also our allies -- including South Korea and Japan.
作为美国总统，我改变了我们的核武器态势以减少核武器数量及其在我们的国家安全战略中的作用。我明确表示，美国将不发展新的核弹头，我们将不进行有关核武器的新的军事使命。我们缩小了可能使用或威胁使用核武器的突发事件的范围。与此同时，我也明确表示，只要核武器还存在一天，我就将与我们的国会共同努力来维持一个安全、有保障并且有效的核武库，不仅能保卫美国，而且能保卫我们的盟国——包括韩国和日本。
My administration’s nuclear posture recognizes that the massive nuclear arsenal we inherited from the Cold War is poorly suited to today’s threats, including nuclear terrorism. So last summer, I directed my national security team to conduct a comprehensive study of our nuclear forces. That study is still underway. But even as we have more work to do, we can already say with confidence that we have more nuclear weapons than we need. Even after New START, the United States will still have more than 1,500 deployed nuclear weapons, and some 5,000 warheads.
本届政府的核态势体现这样一种认识，即我们从冷战时期所继承的巨大的核武库不能适应包括核恐怖主义在内的当代威胁。因此，去年夏天，我指示我的国家安全班子对我们的的核力量进行全面考察，这项工作仍在进行。但即使仍有许多工作待做，我们已经能够有把握地说，我们拥有的核武器超出我们的需要。即使在落实《削减战略武器新条约》以后，美国部署的核武器仍将超过1,500多件并拥有大约5,000枚弹头。
