John Kerry: “if elected, he'll name someone to coordinate a national strategy to prevent such an attack.”

There is no current proposal or plan that has been agreed to which would require us to do that.

Coal is the dirtiest fuel in the world, and emissions that are not captured from coal are the worst cause of the warming of the ocean.

The message is, let's find a way to be able to make sure when we fly, we're not leaving emissions that we cannot capture.

We are competing, but everybody has their own approach, which is one of the exciting things here.