Originally Posted by
big_adventure
I hear you - I'm not saying it would be easy, just that it would be far from impossible given the incalculable amount of resources that would be thrown at the problem. This isn't NASA spending years negotiating the very lowest bidder for a rocket, and building it for a few million. This is "We're going to spend hundreds of billions or trillions to make dozens or hundreds of rockets with the range required and deliver existing warheads and filler" (to provide mass to shift the trajectory).