I got a same letter two days ago after I called at early Dec 2007. Not sure what the "additional review" means. At early Nov'07, I also called to check for NC status, and was told by a guy that my NC was done, and would get result in 2 months. But nothing happens till now. Do not feel the first inquiry is accurate. Maybe I should make an infopass appointment for it. But worry about too many inquiry may cause some problem. Any idea?