The nonpartisan Congressional Budget Office (CBO) estimated that U.S. President Donald Trump's Golden Dome missile defense shield could cost about $1.2 trillion to develop, deploy and operate over 20 years. 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. However, the CBO warned the system could be overwhelmed by a full-scale attack from Russia or China. #donaldtrump #goldendome #usa #news