Chicago interview
Did mine in Chicago on the 22nd last month. First I was asked swear under oath that you're telling the truth and nothing but the truth, and then came a quick firestorm of questions about things in my application. The whole thing was mostly painless. Because I'm a college student who goes to school out of state, they asked me to show them my state ID or driver's licence, and I gave them my licence from my home state with an explanation of my situation, and showed them my proof of enrollment and current class schedule from my school.