Even if Mueller isn't white hat, his investigation couldn't expertly gerrymander the facts to hide the crimes of the deep state. So the facts are going to be in the report making those that signed the FISA and their associates look horrible. I don't see it being possible for Mueller to avoid the exposing of serious crimes.... Mueller knows Whittaker will investigate the investigators so no matter his own motivations to self preserve he is going to have to at least be honest in his investigation. So BOOM.