IS II just now! It seems they only have one interview date in November and one more in December. I felt like I totally butchered my answer to one of the questions. So for those of you who didn't feel your best after finishing the secondary, don't be discouraged.
Also, for future applicants, I wore a plain button-up shirt (first one or two buttons undone and the sleeves rolled all the down) for my secondary videos, not a dress shirt or shirt+tie. They said to dress comfortably but not shabby. I remember looking for info on what other people wore, and I couldn't find much on SDN.