That is a good question, and one for which I can not provide a proper answer. However, I would like to share an anecdote, regarding Virginia Tech,that might be of some interest.
Last spring, much of my family, several close family friends, and myself all attended the graduation ceremonyof one of my olderbrothers. My oldest brother and one of our close family friends (a recently retired Navy Senior Chief) were both carry concealed, as they nearly always do. At the entrance to the hall in which the ceremony was being held, "event security" was searching both persons and bags. Men were being asked to unbutton and open their suit coats and jackets (this included the many men in military uniforms), and women's purses and handbags were being rummaged through.
My brother was carrying under a vest, which they did not ask him to open or remove, and the Chief was either carrying in the small of him back or with an ankle holster (he does both, and I never asked which it was that day), and his gun also went unseen.
At the time, I couldn't help but wonder whatsecurity planned to do if they found what I presume they were looking for. It is my understanding that they can not out right ban carry, and I believe that these "security" measures were being used to scare awayanyone who was unsure about their right to carry there.
In any case, haven't there been a fewSecond Amendment events held in VT builds, which were attended by open carrying individuals?