My heart goes out to the students, parents, faculty, staff, and alumni of Virginia Tech. I cannot imagine going through a tragedy like this.
At the same time, scenarios are running through my head. What could I do to keep my students safe? How could I, in a class with so many people and so many doors keep me and them safe? Or would I be the first target, so it wouldn't matter? I feel more than a little vulnerable right now. I think teaching tomorrow will be hard.