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U.S. Ballistic Missile Defense Costs Could Reach Trillions Against Nuclear Strike.
The United States would need to spend a lot more money on missile defense than an attacker would need to spend on launching nuclear missiles. In the best-case scenario, the US would have to spend 8 times more than the attacker, costing between 500 billion. In a more realistic scenario, the US would need to spend 70 times more, costing between 5.3 trillion.
