“They imply some kind of core problem,” said Thomas B. Cochran, a senior scientist in the nuclear program of the Natural Resources Defense Council, a private group in Washington.

托马斯.B.科克兰是华盛顿私人团体“自然资源保护委员会”核项目的高级科学家，他说：“他们暗示说堆芯出了些问题。”

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Supporters of the Star Wars defense system hope that this would not only protect a nation against an actual nuclear attack, but would be enough of a threat to keep a nuclear war from ever happening.

星球大战防御绻统的支持者们希望它不仅能保护一个遭受核攻击的国家，也希望它能成为使核攻击游不发生的足够威胁。

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Some groups, like the Natural Resources Defense Council, are still resisting nuclear power, just as groups like Greenpeace are fighting genetically engineered crops.

诸如自然资源保护委员会的某些团体，仍然抗拒核能，正如绿色和平对转基因作物的反对。

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U.S.Defense Secretary Robert Gates criticized North Korea Saturday for recklessly pursuing nuclear and missile capabilities while many of its people starved.

VOA: standard.2009.05.30

The subject of Iran and its nuclear ambitions dominated talks Monday between Mr.Gates and the Israeli Defense Minister, Ehud Barak.

VOA: standard.2009.07.27

Russia says the European missile defense system changes the balance of power and threatens its nuclear arsenal.

VOA: standard.2010.03.26

We have agreed on steps to expand our cooperation in space, civil nuclear defense and other high-end sectors.

WHITEHOUSE: President Obama and Prime Minister Singh Press Availability | The White House

From 1997 to 2000, Ms. Gottemoeller worked at the U.S. Department of Energy, serving as Director of the Office of Non-Proliferation and National Security from 1997 to 1999, as Assistant Secretary for Non-Proliferation and National Security from 1999 to 2000, and as Deputy Under Secretary for Nuclear Security and Acting Deputy Administrator for Defense Nuclear Non-Proliferation in 2000.

WHITEHOUSE: President Obama Announces More Key Administration Posts

We also adopted a Deterrence and Defense Posture Review that showed what the appropriate mix of conventional nuclear and missile defense forces should be in order to advance our deterrence and defense capabilities.

WHITEHOUSE: Press Briefing on NATO Defense Capabilities