I am not a patriot. I don’t believe in the inherent value of identifying with one nation over another. A nation, to me, is simply a collective noun to describe a group of people living in a particular place at a particular time, with their own more-or-less consensual geographical identity.
That said, I grew up in the suburbs of New York. And I’m a lot like other people who also grew up there. And when terrible things happen to your neighbours, the news hurts you deeply. The news of horrible things happening to people all over the world hurts too — but this is different. I didn’t feel more deeply for the people caught in the attacks in New York (and elsewhere in the US) on 9/11, but I felt differently for them. It was so close to home; they were my neighbours.
I don’t think 9/11 is necessarily the worst thing that’s happened in recent history — but it’s the worst thing that’s happened to my neighbours. It offends me when ordinarily kind, sympathetic people talk about 9/11 like it’s not worthy of their tears, because the US is such a global bastard. I’m not offended as an American, but as a New Yorker.