John Kerry: “Our interest is in protecting the sovereignty, independence and territorial integrity of Ukraine.”

We are not, I have not, President Biden has not, we are not saying to people, you should not fly.

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.

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

Back-up baseload, no. But, some primary they could be part of it.