Maggie Carey

Under normal circumstances, if the centerpiece of a president's campaign is helping the disadvantaged and we are our brother's keeper, the idea that this same guy has an actual brother living in third-world poverty without any help from Obama, this would have been on the cover of 'The New York Times.' But none of them are touching it.

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.