There is a question about do we do more, in a security sense—should our agencies have known more—all of those sorts of things. They're appropriate to ask, but I think we do need to remember that many of the people who were affected by the events that day came to live in this country because they wanted to live a life that was free. It was dreadfully disruptive, dreadfully—I suppose you'd say—shattered the dream by the events of that day. But for their families, none the less, the goals that they had in coming here remain true. And so we need to remember that, for all of the security measures that we might put in place, they have to be measures that are acceptable inside a free society, and we cannot completely rearrange everything to affect other people's freedoms, simply on the back of the activities of, as I said before, a deranged gunman. 