which is that we all assume that bob mueller will write a report that is factually rich and tell us thetory, and that is really conditioned by the star report. he may not see that as the mission here, the regulation under which he is serving doesn't say what kind of report he is supposed to write. maybe it will be a very spare report that says i brought 38 cases, i submitted 800 subpoenas, i talked to this number of witnesses, you can imagine a very restrained report that really doesn't consider it his job to tell us the whole story of what happened. >> all right, let me put out another theory, then, what if the report is in his head, and he is subpoenaed to testify before congress. >> i think that is a very important possibility, and it is one of the ultimate weapons that mueller has. executive privilege is a great m mechanism for the president for a witness that doesn't want to testify. and wants an excuse, or a plausible legal basis and says i'm not going to answer your questions. as jim comey showed, it is a terrible mechanism to prevent someone that wants to testify. would he asser