@Cycloptichorn,
Neither! America should focus on colonizing Near Earth Orbit, with stations at Lagrange points, and on harvesting asteroids from the asteroid belt; it's a waste of our time mucking around in foreign gravity wells.
Cycloptichorn
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Come on we are going to jump from our current technology to building large scale Lagrange points settlements and moving large asteroids around the solar system without first setting up moon bases and mass drivers on the moon and plants to break moon water up for rocket fuel?
Yes if we would go with the 1950s Orion concept, it might be possible however the environments nuts now go crazy when we launch a space probe with a few kilograms of radioactive elements for electric power so I can just picture them rolling over if we planned to launch space crafts weighting more then an aircraft carrier using a few hundred small nuclear bombs to do so!