text:  When the green lights are off, they say... So you're saying that the green light is on. And when the green light is on, the microphone is on. Thanks. ...to the candidate, his microphone is off. Yes. Now I want to give you a sense of what it will look like for viewers at home if a candidate whose microphone is off interrupts a candidate whose microphone is on. Well, what'll happen to their Mr. CNN guy? Standing at one podium, and I'll ask Phil to come in and take the other podium.