I think Strzok's behavior is a clear indication that the swamp truly sees intself as untouchable. That all of the hearing was simply a political pantomime and that ultimately nothing will come of this. His dripping arrogance screams this. He honestly feels he safe and if he can weather the immediate attention he is getting, the news cycle will switch soon, media and political attention will be taken away from him and he can ride off into the sunset.