Sure there is. Chess. We can signal that we are going to go get the uranium just so we can see their response (show their hands). Or we could do nothing, but they are freaked out enough about the threat that they have a response that tips us off. Of course we could always put it out there, and not act on it for a few weeks once they have finally let their guard down thinking it was just a head-fake.

Trump is the best at this kind of stuff.