All of us are public and private beings, and if all you're going to get from the interviewee is their public self, there's no point in it. It's pre-programmed. It's infomercial, and we all have infomercials about our lives.
Todos nosotros somos entes públicos y privados, y si todo lo que vas a obtener del entrevistado es su imagen pública, no tiene sentido. Está pre-programada. Es un infomercial, y todos tenemos infomerciales respecto a nuestras vidas.