When my radio-alarm woke me this morning...7am on September 11 (here in Australia)...the radio station was playing a tribute to this day one year ago. It was a complied sequence of radio news and audio clips from 11 September, 2001...and when it ended they played U2 - "Walk On" (with the "Peace on Earth" intro) live in London. Beautiful. A nice finishing touch to the tribute. I'm sure many will be doing the same.