Stephen Sondheim

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.

I have a lot of stands on a lot of political issues. I'm very big on campaign finance reform. I still think most Americans aren't aware of how the dumping of big corporate dollars and private donor dollars has totally corrupted the political system and taken it away from them.