Virginia Tech Lockdown

It seems that someone may or may not have come onto the Virginia Tech campus today and he may or may not have been carrying a gun.

Virginia Tech lifted a lockdown Thursday more than five hours after three youths reported seeing a man carrying what may have been a gun covered with a cloth on the campus where 33 people died in a mass shooting four years ago.

But that's un-possible. We all know that it's against the law to carry a gun on the Virginia Tech campus.

At 2:41 p.m. EDT, the university posted a note on its website declaring an end to the lockdown under which students, faculty and others had been asked to remain indoors. But the school said a "large police presence" would remain on campus.

Why would you need a "large police presence" if nothing untoward had been found?

I've never been to Virginia Tech, but I assumed that the students and faculty were adults. I see that I am profoundly mistaken.