I would have to say no, since it violates the antiballistic missile treaty, which is a treaty the US helped to enact. We (US) say we're all for disarming bombs and nuclear weapons and we say we're all for disarmament, but it's such a lie. How do you think other friendly nations will feel if we're able to construct something like this? I'm sure they're going to feel betrayed and misled.
I'd much rather see the funds, which will be in excess of trillions I'm sure, used in a non-isolationist and peaceful manner. But then again, I guess I'm not privy to the secret politics of the world. Although, I hardly doubt any country would dare to challenge the United States on a grand scale.