to tell if they're willing to tut a deal with him and no one has cut a deal with him yet. these conversations are ongoing, going on the last couple of days and continuing. >> jeff, based on your experience, how do these discussions go. he gets immunity for a day in which he can tell what he would say and they will judge whether they offer him immunity. these discussions, offered by the house and fbi and senate, do they happen in a room together? do they have to all be together? >> it's almost always face-to-face. one of the things a prosecutor or investigator is trying to decide in whether to grant immunity is whether someone is telling the truth. that's the most important thing. you're not going to give immu immunity to someone you think is lying to you. this is a face-to-face