Mine was why do I have two US passports? And then he talks to his buddy across the interview room and asks if he knew that State issues two passports (to which his buddy replies no). And he asks me if I work for the government (to which I reply no). Then he starts taking my digital fingerprints, asks about my job and I ask about his (always good to ask about their jobs since they will have something to complain--legitimately), hands me my (Nexus) card, and escorts me to the door.