2026年5月12日 下午6:18 UTC 更新于1小时前 / 路透社
作者：迈克·斯通
2025年5月20日，美国华盛顿白宫椭圆形办公室，美国总统唐纳德·特朗普在国防部长皮特·赫格斯塞斯陪同下就“金穹”导弹防御系统发表声明。路透社/凯文·拉马克
华盛顿，5月12日（路透社）——无党派的国会预算办公室周二估算，美国总统唐纳德·特朗普提出的“金穹”导弹防御系统在20年内的研发、部署和运行总成本约为1.2万亿美元，这一数字远超该项目五角大楼主管提出的1850亿美元成本预估。
“金穹”计划旨在扩展陆基防御系统，包括拦截导弹、传感器以及指挥控制系统，同时新增天基组件，用于从轨道上探测、追踪并有可能击落来袭威胁。这些天基组件将包括先进卫星网络和轨道武器。
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国会预算办公室估算，仅该系统的采购成本就将超过1万亿美元，其中天基拦截层——由7800颗卫星组成的星座——约占采购成本的70%。
该系统将覆盖包括阿拉斯加和夏威夷在内的美国全境，具备完全应对朝鲜等地区对手袭击的能力。不过国会预算办公室警告称，该系统可能无法抵御俄罗斯或中国发动的全面攻击。
2025年1月27日签署的设立“金穹”项目的行政命令，设定了极具挑战性的时间表，要求在2028年前部署全面的本土导弹防御系统。
迈克·斯通华盛顿报道；克里斯·桑德斯编辑
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US budget watchdog estimates Golden Dome will cost $1.2 trillion, dwarfing Pentagon’s $185 billion estimate
May 12, 2026 6:18 PM UTC Updated 1 hour ago / Reuters
By Mike Stone
U.S. President Donald Trump makes an announcement regarding the Golden Dome missile defense shield next to U.S. Defense Secretary Pete Hegseth in the Oval Office of the White House in Washington, D.C., U.S., May 20, 2025. REUTERS/Kevin Lamarque
WASHINGTON, May 12 (Reuters) – The nonpartisan Congressional Budget Office estimated on Tuesday that U.S. President Donald Trump’s Golden Dome missile defense shield could cost approximately $1.2 trillion to develop, deploy and operate over 20 years, a figure that dwarfs a $185 billion price tag offered by the program’s Pentagon director.
Golden Dome envisions expanding ground‑based defenses such as interceptor missiles, sensors and command‑and‑control systems while adding space‑based elements meant to detect, track and potentially shoot down incoming threats from orbit. These would include advanced satellite networks and orbiting weapons.
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The CBO estimated acquisition costs alone for the system would total just over $1 trillion, with the space-based interceptor layer — a constellation of 7,800 satellites — accounting for about 70 percent of acquisition costs.
The system would cover the entire United States, including Alaska and Hawaii, and would have the capacity to fully engage an attack from a regional adversary such as North Korea. However, the CBO warned the system could be overwhelmed by a full-scale attack from Russia or China.
The executive order establishing Golden Dome, signed on January 27, 2025, set an aggressive timetable to field a comprehensive homeland missile-defense system by 2028.
Reporting by Mike Stone in Washington; editing by Chris Sanders
Our Standards: The Thomson Reuters Trust Principles.
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