They will need additional buses, additional employees, fuel - everything across the board goes up. Anything that improves safety, we're all for it. But the unintended consequences are too great to justify.

He's taking a populist approach.

It was something to get into. When we get older, we get new toys.

It helps us develop technologies and techniques needed for opening the space frontier.

The next logical step is to think what makes the most sense for a shielded presence on another planet. It's time to go beyond Earth's orbit.