John Kerry: “We will need to push back against Iran's provocative and dangerous policies and tactics.”

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

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.

What we are trying to achieve now is really to establish some stability if we can, in the relationship, without conceding anything.

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