Bluebell - I found your final para scary, as I had to agree, it'd be C, a Guardian journalist. I say this with regret, as a retired public servant of 33 years, and someone whose father was in the police force after being a Marine in the 2nd war. 9/11 did change the world I believe. As Greatnan says, it convinced the Americans that terrorism was just that, and they stopped financing the IRA. On 9/11 I left the office, to drive to a visit, and put Radio 4 on the car radio. Initially thought I was listening to the afternoon play. It then slowly dawned on me that the BBC was reporting live news. I watched the tv later, with my daughters, then 14 and 15 as the image of the planes flying into the twin towers was re-played. I genuinely believed we were probably on the brink of a world war. As that fear diminished, the fear about what would happen to freedom began to emerge.