John Kerry: “They are not wearing a uniform, but a whole bunch of them are taking risks in this dangerous world we live in.”

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.

Nothing is agreed to until everything is agreed to.

But, we could with battery. We could with-- there's ways to make that work.

In terms of global challenges and U.S. interests, yes.