每一个美国人都如我一样对马伦上将在所有这些成果中发挥的作用心怀感激，这些成果将在未来几十年中加强我国的安全保障。
And every American can be grateful to Admiral Mullen — as am I — for his critical role in each of these achievements, which will enhance our national security for decades to come.
马伦上将承认，美国对巴基斯坦核武状况的了解程度有限，不过他说，巴基斯坦最近几年中已经显著提高了其核武库的安全性。
Mullen acknowledges there is a limit to what the United States knows about Pakistan's nuclear weapons, but he says Islamabad has made dramatic improvements in the arsenal's security in recent years.
麦凯恩：马伦上将认为奥巴马议员的计划对美国很危险。
MCCAIN: Admiral Mullen suggests that Senator Obama's plan is dangerous for America.
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