Two things:

First, check out the story from Drudgereport–that Russian lawyer said she hasn't been interviewed by Mueller. That could be evidence that he's /ourguy, or any number of other things.

The other thing is, didn't it seem odd that Nunes was conducting his interview from what looked like an aircraft exhibit? Why would he be there, of all places? Also, notice the 4 digits on the plane–could they be what Q was referring to?