and around the grand jury room. but this is like throwing darts a at dart board. we really have so little visibility into the inner workings of the mueller camp, and it would just be a guess. >> a key point with roger stone, john, so many people around him have spoken to the special counsel. roger stone hasn't, though. what's going on? why is that significant? >> well, typically, that would tell us that he could be a target. targets aren't brought before grand juries, and sometimes they're actually sent target letters if they want to go before a grand jury. apparently not even that has happened with him, but a number of his friends and associates, many of them have been asked questions about him and his knowledge during the campaign of advanced knowledge of what wikileaks was going to do, why john podesta was coming up, and it appeared during the campaign