If haven't yet you should read "Jarhead" and how in its' content it exposes the "interview' sessions.
How they get coached as to what to say( cases of formal rehearsals) and to show their Biceps and look like good strong upstanding American boys.
And then they go off camera and laugh at it all on how the world they talk of to the press and of the real world talked about among themselves be two different worlds.
And as the article says, the key gun at their head is if they speak out of line, that's it, their career is roadkill.
A "blackball" or whatever goes permanently into their file.
Ah the "joys" of fighting for democracy.