Inaction may be the biggest form of action.

The shuttle tomorrow is truly like laying the last spike on the transcontinental railroad, only much more so. And whether or not we're going to see in in the next 10 or 20 years, there are people alive today who will see manufacturing in space from moon materials or from asteroids.

We need the science to continue. The heat, the storms, the sea level rise, the Arctic melting. These are all real facts that over time will sink in. The question is, will that be two years, or five years or 10 years?

Even when you sign a treaty like I think [Richard] Nixon did, the anti-ballistic missile treaty, George W. Bush reneged on it. He got out of. So any treaty can be withdrawn from.

Let us not mince words about what this would be: a deportation force designed to break up families and deport millions of people.

You've got the oil companies fighting Pope Francis. Fighting the scientists of the world. Fighting the governor of California. They are engaged in literally a life-and-death struggle, and I have no doubt who is going to be the victor.

It's not viable' for poverty stricken developing world to emulate prosperity of U.S.