Hello,
I received a yellow letter from USCIS (or Dept of HLS, I don't remember now) stating that additional documentation was needed at the time of the interview. At the end of the letter the additional document required is driver's license or any state-issued photograph document. This has been me worried since I received this letter, b/c the drivers' license is one of the first things they ask you to bring to the interview, as the document check list says and b/c I always have it on me like most people, I think. Ant thought on this? Thank you