investigations, obviously chairman schiff took pains to point out that there is going to be open session testimony but it's going to be followed by testimony in closed session that will involve mueller's staff. even at that closed session where members are used to hearing classified information and all sorts of sensitive stuff, those justice department staffers, those special counsel's office staffers, even in closed session they won't be able to talk to members of congress about ongoing open criminal matters, will they? >> i don't think so. typically not. some of the things for which the department of justice will typically invoke privilege, you know, or narrowly they're supposed to disclose and be transparent but there are a few areas of sensitivity. grand jury material is one and another is ongoing criminal matters. they wouldn't want to say anything that might jeopardize the success of those investigations. >> all right. even behind closed doors. yeah. >> there is always the chance that someone will disclose something that happened that can harm -- >> let me just ask you bluntly. i know you've read the whole mueller report, as have i, and