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I was finishing a Training course at Sophos HQ that day (They call their HQ "The Pentagon", Which was strangely appropriate on that day)

Had to drive home from Oxford to Chelmsford. The journey took six hours (Via the A414 instead of the M25); I don't remember much of the details of the drive, but I was listening to Radio 5 live all the way home, and lots of that commentary still sticks in my mind.