I had the interview yesterday with officer A. She was very nice. Though I prepared tons of documents, she only asked me the regular 485 questions and checked my passport. I got the stamp in about 20 minutes. Finally the I-485 journey came to the end and I could throw out so many paper work copies I have accumulated over the years. As to name check, we had simliar situation before. Contacting senator did not help because they tole me that they basically only have contact with USCIS, not FBI. What really worked was that we kept sending fax inquiry followed by email inquiry to FBI. A couple months after we started doing that, the name check was done. But be patient, their reply arrives normally one or two months later. The email address is FBINNCP@ic.fbi.gov. Good luck.