On negotiating:

Isn't the very root of negotiating a certain amount of trust between the negotiating parties? Yes? Okay, then what does one do when one wants a certain type of behavior out of another party, but one cannot trust that party because they have demonstrated they will not keep their word?

(Final Jeopardy theme here . . .)

And the question is: What is 'Offer an ultimatum'?

Correct!

Now, about North Korea . . .

The Ostrich Killer goes back to sleep, having made another telling point.