I did my bit for perspective and sanity, and I have nothing material to add.
As for this terrorist, I prefer Roark's answer to Toohey: "But I don't think of you." Evil is not important, not unless it happens to significantly affect my life, and neither this scum nor his brothers-in-murder are likely to affect my life even a little. Unless, of course, public hysteria about terrorism is used as an excuse to tighten up the American police state. But whose fault would that be?
All of which is a long-winded way of saying, "I'm outta here". I need to return my attention to where it belongs, on ways of making a better future.