this from the mueller team -- run underneath the surface. every now and then the subsurfaces you see an indictment or a search warrant or a plea agreement. buy at all other times they are beneath the surface. we don't want witnesses leaking statements and don't want information leaked to the press. bob mueller cannot be happy about it. >> you know this world well. you know how cases like this work. i know you can't guarantee there haven't been leaks but how confident are you that leaks out of mueller world have been either zero to minimum? >> very confident. i worked for the man. i know a number of people on his team. i would find it very, very difficult to believe -- not improblem but very, very difficult to believe that that's the source of these leaks. >> it's interesting that you use the submarine metaphor here that we don't know where the mueller sub is at any given time and all of a sudden it pops up. and you are like george papadopoulos, who is that? and then everybody learns who he