mueller's prosecutor said this is a small part of the larger investigation. he's let people know this guy represents just the tip of the iceberg for his broader investigation. second is -- >> which is also interesting about that it's the tip of the iceberg no one saw. usually the tip of the iceberg sts stuff the media sees. he was arrested and no one knew about it. >> well, that's right. and in some sorts that's testament to bob mueller's team and the way they're operating. second, plooes arrested or pleas guilty to lying. what we did when he was first involved with the fbi is try to be protective of others. so, i think that this guilty plea to lying has to tell anybody else who has or is going to be interviewed, you better think long and hard about what you're going to say to mueller. you can't protect anyone but yourself, because if you do lie