if you are going to interview for a job as an assistant professor, have at least two things with you:
a. your dissertation, if its not with you, don't agree to an interview
b. at least three papers that define your work
that is my suggestion:) I've run into both issues in the last few weeks, and the way you feel if you don't have such things ready and available is that your colleagues don't seem to trust you as to your view of the future, and well a feeling of distrust is not pleasant. so…. who knows.