After the horror of Friday night, my mind went back to a night nine and a half years ago. And I thought about the men and women charged with keeping us safe.
In 2006, I was stopped by security at passport control in Paris' Gare du Nord as I tried to board the Eurostar train. It was the day after the Champions League final, which saw Frank Rijkaard's Barcelona defeat Arsenal 2-1. You may remember it: Jens Lehmann was sent off, Juliano Belletti scored the winner and all that.
Between work and a late dinner, I had stayed up all night and it was well before seven in the morning.