Does anyone know how Musk plans to address the lack of Mars' magnetosphere? [1]

As much as I am rooting for him, I don't see how a long term colony is possible without addressing this problem. If we're going to live in underground, shielded habitats, why not just build space colonies and/or Moon colonies?

Furthermore, I don't think we're going to get very far in space manufacturing without a high energy density power source (e.g. fusion).

As such, shouldn't Elon be advocating for increased research funding for fusion?

1. http://science.nasa.gov/science-news/science-at-nasa/2001/as...