John Kerry: “Congress is right to focus on these concerns and to require concrete assurances from the administration that they can be…”

The era of the Monroe Doctrine is over.

No, that's not acceptable. And I believe it was an algorithm that kicked that out kind of crazily.

Hopefully we can get there.

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.