re: "malicious schadenfreude over 9/11"
I'm suprised by your comment - I thought it's common knowledge this occurs both in the media and in the streets. Maybe not so much in your neck of the woods, so much the better for you and your community. And of course I'm referring to other countries outside the US.
The middle east or in South America, for instance. More suprsingly is when it crops up in countries like Australia and New Zealand, which are supposed to be 'civilized' but are sometimes lacking in basic humanity and common decency. I've heard it myself from a few people - admittedly most of those were Muslim immigrants, but many were from local or other backgrounds.