Here’s what the various ScienceBloggers are saying about Virginia Tech.
I’m not personally enthused about turning the whole ugly episode into a rallying cry for whatever cause you favor right now, but I do side with Dunford: of course this is a time you should express your positions. This is a good time, when events have made the concerns more immediate and when people are looking for answers. It’s not a good time to act on those positions, because emotions overwhelm sense, but they are also good indicators of what is important to people.
For instance, if you see this as an excuse to cage all the foreigners, I’d like to know so I can stay upwind of you at all times. If you’re concerned about what we can rationally do to prevent these tragedies in the future, even while distraught about the evil that has been done, then OK, I’ll try to remember that you are a fellow signee of our mutual social contract. So please, keep it civil, and remember that we are a community of civilized beings, not a mob of barbarians.