Mr. Vaughn. The only time when I ever moved out of my position there was when this car which was driven by Lieutenant Pierce exited by that ramp.
Mr. Hubert. Before we get to that, let me ask you this—you mentioned that on several occasions people came in, identified themselves and you let them through, or you turned away other people?
Mr. Vaughn. Yes.
Mr. Hubert. What steps did you take to maintain the security of your post while you were talking to such people so that other people wouldn't sneak through?
Mr. Vaughn. I was still standing in the middle of the ramp.
Mr. Hubert. It would be impossible, you think, for anybody to pass on either side of you?
Mr. Vaughn. That's right—without seeing them.
Mr. Hubert. Now, coming to the time when the automobile passed through, tell us what you know about that?
Mr. Vaughn. Well, I would say it was approximately a quarter or a little past—about 18 minutes past 11, somewhere around there—I wouldn't be exact on the time.