Although there are abundant rhetorical similarities, I don't think that the issues arising from the Virginia Tech shootings and 9/11 are at all the same. What I do think they have in common is a tendency for overreaction: a tendency for salience-- and a sense of emergency-- to displace good public policy. If there is anything we should have learned from 9/11, it is that a sense of emergency can justify all sorts of bad decisions that we will come to regret later on.
Hear fucking hear.